Growth form describes the potential life span of the plant and its parts (ramets), its reproductive strategy and durability of its aboveground parts (Klimešová et al. 2016, Ottaviani et al. 2017). Here the growth form is classified into nine categories, which also consider herbaceous vs woody nature of the stem. Annual herbs live for one season only and reproduce by seed usually in the same season in which they germinated. They may but need not be clonal; their clonality typically does not result in fragmentation. Perennial herbs are divided into three categories: (i) monocarpic perennial non-clonal herbs, which reproduce sexually only once in their life and do not possess woody aboveground parts or organs of clonal growth, (ii) polycarpic perennial non-clonal herbs, which reproduce sexually several times during their life and do not possess organs of clonal growth, and (iii) clonal herbs, which possess organs of clonal growth enabling them to make fragments during their life and to form independent units (ramets) by vegetative reproduction; the whole plant reproduces sexually several times during its life, while individual ramets may reproduce once or several times during their life. The other categories include woody plants, which may but need not possess organs of clonal growth and may be able or not of fragmentation and vegetative reproduction. The woody plants are divided into dwarf shrubs (woody plants lower than 30 cm, also including suffruticose plants with erect, herbaceous shoots growing from woody stems at the base, which die out in autumn except for the lowest part with regenerative buds), shrubs (woody plants higher than 30 cm, branched at the base), trees (woody plants with trunk and crown), woody lianas and parasitic epiphytes, which include only two species of the Czech flora, Loranthus europaeus and Viscum album.
Data were partly taken from the aggregated CLO-PLA 3.4 database (Klimešová et al. 2017). The CLO-PLA categories were further divided into separate categories for herbaceous vs woody plants, and taxa not included in CLO-PLA were added.
Dřevojan P. (2020) Growth form. – www.pladias.cz.
Klimešová J., Nobis M. P. & Herben T. (2016) Links between shoot and plant longevity and plant economics
spectrum: Environmental and demographic implications. – Perspectives in Plant Ecology, Evolution and
Systematics 22: 55–62.
Klimešová J., Danihelka J., Chrtek J., de Bello F. & Herben T. (2017) CLO-PLA: a database of clonal and budbank
traits of the Central European flora. – Ecology 98: 1179.
Ottaviani G., Martínková J., Herben T., Pausas J. G. & Klimešová J. (2017) On plant modularity traits: functions
and challenges. – Trends in Plant Science 22: 648–651.
Grime (1974, 1979) distinguished three basic ecological strategies of plants: (i) competitive strategy (C), advantageous in stable habitats where resources are abundant, conditions not extreme and the disturbance level low; (ii) stress-tolerant strategy (S), advantageous where resources are scarce, conditions severe and highly variable, but disturbance is uncommon; and (iii) ruderal strategy (R), advantageous where resources are abundant and conditions not extreme, but the disturbance frequency is high.
Taxa of the Czech flora were assigned to life strategies based on the method proposed by Pierce et al. (2017). The life strategies calculated using this method represent the trade-off in resource investment between three key leaf traits: leaf area (LA; high in competitive taxa), leaf dry matter content (LDMC; high in stress-tolerant taxa) and specific leaf area (SLA; high in ruderal taxa). Scores that express the degree of C-, S- and R-selection are calculated from these traits. These scores are expressed on a percentage scale, and the sum of the three scores for individual taxa is 100%. Based on these scores, the taxa are assigned to the basic primary strategies C, S and R, intermediate strategies CS, CR, SR and CSR, and transitions between them, e.g. C/CS or SR/CSR (sensu Grime 1979). The data on leaf traits for these calculations or calculated values were taken from the LEDA database (Kleyer et al. 2008) and some other sources (Bjorkman et al. 2018, Dayrell et al. 2018, Findurová 2018, Tavşanoğlu & Pausas 2018, Wang et al. 2018, Guo et al. 2019). The Pladias database contains both the score values for the three categories C, S, R and the categorized life strategies.
Guo W.-Y. & Pierce S. (2019) Life strategy. – www.pladias.cz.
Bjorkman A. D., Myers-Smith I. H., Elmendorf S. C. et al. (2018) Tundra Trait Team: A database of plant traits spanning the tundra biome. – Global Ecology and Biogeography 27: 1402–1411.
Dayrell R. L., Arruda A. J., Pierce S., Negreiros D., Meyer P. B., Lambers H. & Silveira F. A. (2018)
Ontogenetic shifts in plant ecological strategies. – Functional Ecology 32: 2730–2741.
Findurová A. (2018) Variabilita listových znaků SLA a LDMC vybraných druhů rostlin České republiky [Variability
of leaf traits SLA and LDMC in selected species of the Czech flora]. – Master thesis, Masaryk University, Brno.
Grime J. P. (1974) Vegetation classification by reference to strategies. – Nature 250: 26–31.
Grime J. P. (1979) Plant strategies and vegetation processes. – Wiley, Chichester.
Kleyer M., Bekker R. M., Knevel I. C., Bakker J. P., Thompson K., Sonnenschein M., Poschlod P., van
Groenendael J. M., Klimeš L., Klimešová J., Klotz S., Rusch G. M., Hermy M., Adriaens D., Boedeltje G.,
Bossuyt B., Dannemann A., Endels P., Götzenberger L., Hodgson J. G., Jackel A. K., Kühn I., Kunzmann D.,
OzingaW. A., Romermann C., Stadler M., Schlegelmilch J., Steendam H. J., Tackenberg O., Wilmann B.,
Cornelissen J. H. C., Eriksson O., Garnier E. & Peco B. (2008) The LEDA Traitbase: a database of life-history
traits of the Northwest European flora. – Journal of Ecology 96: 1266–1274.
Pierce S., Negreiros D., Cerabolini B. E. L., Kattge J., Díaz S., Kleyer M., Shipley B., Wright S. J.,
Soudzilovskaia N. A., Onipchenko V. G., van Bodegom P. M., Frenette-Dussault C., Weiher E., Pinho B. X.,
Cornelissen J. H. C., Grime J. P., Thompson K., Hunt R., Wilson P. J., Buffa G., Nyakunga O. C., Reich P. B.,
CaccianigaM., Mangili F., Ceriani R. M., Luzzaro A., Brusa G., Siefert A., Barbosa N. P. U., Chapin F. S.,
Cornwell W. K., Fang J., Fernandes G. W., Garnier E., Le Stradic S., Peńuelas J., Melo F. P. L., Slaviero A.,
Tabarelli M. & Tampucci D. (2017) A global method for calculating plant CSR ecological strategies
applied across biomes world-wide. – Functional Ecology 31: 444–457.
Tavşanoğlu Ç. & Pausas J. G. (2018) A functional trait database for Mediterranean Basin plants. – Scientific
Data 5: 180135.
Grime (1974, 1979) distinguished three basic ecological strategies of plants: (i) competitive strategy (C), advantageous in stable habitats where resources are abundant, conditions not extreme and the disturbance level low; (ii) stress-tolerant strategy (S), advantageous where resources are scarce, conditions severe and highly variable, but disturbance is uncommon; and (iii) ruderal strategy (R), advantageous where resources are abundant and conditions not extreme, but the disturbance frequency is high.
Taxa of the Czech flora were assigned to life strategies based on the method proposed by Pierce et al. (2017). The life strategies calculated using this method represent the trade-off in resource investment between three key leaf traits: leaf area (LA; high in competitive taxa), leaf dry matter content (LDMC; high in stress-tolerant taxa) and specific leaf area (SLA; high in ruderal taxa). Scores that express the degree of C-, S- and R-selection are calculated from these traits. These scores are expressed on a percentage scale, and the sum of the three scores for individual taxa is 100%. Based on these scores, the taxa are assigned to the basic primary strategies C, S and R, intermediate strategies CS, CR, SR and CSR, and transitions between them, e.g. C/CS or SR/CSR (sensu Grime 1979). The data on leaf traits for these calculations or calculated values were taken from the LEDA database (Kleyer et al. 2008) and some other sources (Bjorkman et al. 2018, Dayrell et al. 2018, Findurová 2018, Tavşanoğlu & Pausas 2018, Wang et al. 2018, Guo et al. 2019). The Pladias database contains both the score values for the three categories C, S, R and the categorized life strategies.
Guo W.-Y. & Pierce S. (2019) Life strategy. – www.pladias.cz.
Bjorkman A. D., Myers-Smith I. H., Elmendorf S. C. et al. (2018) Tundra Trait Team: A database of plant traits spanning the tundra biome. – Global Ecology and Biogeography 27: 1402–1411.
Dayrell R. L., Arruda A. J., Pierce S., Negreiros D., Meyer P. B., Lambers H. & Silveira F. A. (2018)
Ontogenetic shifts in plant ecological strategies. – Functional Ecology 32: 2730–2741.
Findurová A. (2018) Variabilita listových znaků SLA a LDMC vybraných druhů rostlin České republiky [Variability
of leaf traits SLA and LDMC in selected species of the Czech flora]. – Master thesis, Masaryk University, Brno.
Grime J. P. (1974) Vegetation classification by reference to strategies. – Nature 250: 26–31.
Grime J. P. (1979) Plant strategies and vegetation processes. – Wiley, Chichester.
Kleyer M., Bekker R. M., Knevel I. C., Bakker J. P., Thompson K., Sonnenschein M., Poschlod P., van
Groenendael J. M., Klimeš L., Klimešová J., Klotz S., Rusch G. M., Hermy M., Adriaens D., Boedeltje G.,
Bossuyt B., Dannemann A., Endels P., Götzenberger L., Hodgson J. G., Jackel A. K., Kühn I., Kunzmann D.,
OzingaW. A., Romermann C., Stadler M., Schlegelmilch J., Steendam H. J., Tackenberg O., Wilmann B.,
Cornelissen J. H. C., Eriksson O., Garnier E. & Peco B. (2008) The LEDA Traitbase: a database of life-history
traits of the Northwest European flora. – Journal of Ecology 96: 1266–1274.
Pierce S., Negreiros D., Cerabolini B. E. L., Kattge J., Díaz S., Kleyer M., Shipley B., Wright S. J.,
Soudzilovskaia N. A., Onipchenko V. G., van Bodegom P. M., Frenette-Dussault C., Weiher E., Pinho B. X.,
Cornelissen J. H. C., Grime J. P., Thompson K., Hunt R., Wilson P. J., Buffa G., Nyakunga O. C., Reich P. B.,
CaccianigaM., Mangili F., Ceriani R. M., Luzzaro A., Brusa G., Siefert A., Barbosa N. P. U., Chapin F. S.,
Cornwell W. K., Fang J., Fernandes G. W., Garnier E., Le Stradic S., Peńuelas J., Melo F. P. L., Slaviero A.,
Tabarelli M. & Tampucci D. (2017) A global method for calculating plant CSR ecological strategies
applied across biomes world-wide. – Functional Ecology 31: 444–457.
Tavşanoğlu Ç. & Pausas J. G. (2018) A functional trait database for Mediterranean Basin plants. – Scientific
Data 5: 180135.
Grime (1974, 1979) distinguished three basic ecological strategies of plants: (i) competitive strategy (C), advantageous in stable habitats where resources are abundant, conditions not extreme and the disturbance level low; (ii) stress-tolerant strategy (S), advantageous where resources are scarce, conditions severe and highly variable, but disturbance is uncommon; and (iii) ruderal strategy (R), advantageous where resources are abundant and conditions not extreme, but the disturbance frequency is high.
Taxa of the Czech flora were assigned to life strategies based on the method proposed by Pierce et al. (2017). The life strategies calculated using this method represent the trade-off in resource investment between three key leaf traits: leaf area (LA; high in competitive taxa), leaf dry matter content (LDMC; high in stress-tolerant taxa) and specific leaf area (SLA; high in ruderal taxa). Scores that express the degree of C-, S- and R-selection are calculated from these traits. These scores are expressed on a percentage scale, and the sum of the three scores for individual taxa is 100%. Based on these scores, the taxa are assigned to the basic primary strategies C, S and R, intermediate strategies CS, CR, SR and CSR, and transitions between them, e.g. C/CS or SR/CSR (sensu Grime 1979). The data on leaf traits for these calculations or calculated values were taken from the LEDA database (Kleyer et al. 2008) and some other sources (Bjorkman et al. 2018, Dayrell et al. 2018, Findurová 2018, Tavşanoğlu & Pausas 2018, Wang et al. 2018, Guo et al. 2019). The Pladias database contains both the score values for the three categories C, S, R and the categorized life strategies.
Guo W.-Y. & Pierce S. (2019) Life strategy. – www.pladias.cz.
Bjorkman A. D., Myers-Smith I. H., Elmendorf S. C. et al. (2018) Tundra Trait Team: A database of plant traits spanning the tundra biome. – Global Ecology and Biogeography 27: 1402–1411.
Dayrell R. L., Arruda A. J., Pierce S., Negreiros D., Meyer P. B., Lambers H. & Silveira F. A. (2018)
Ontogenetic shifts in plant ecological strategies. – Functional Ecology 32: 2730–2741.
Findurová A. (2018) Variabilita listových znaků SLA a LDMC vybraných druhů rostlin České republiky [Variability
of leaf traits SLA and LDMC in selected species of the Czech flora]. – Master thesis, Masaryk University, Brno.
Grime J. P. (1974) Vegetation classification by reference to strategies. – Nature 250: 26–31.
Grime J. P. (1979) Plant strategies and vegetation processes. – Wiley, Chichester.
Kleyer M., Bekker R. M., Knevel I. C., Bakker J. P., Thompson K., Sonnenschein M., Poschlod P., van
Groenendael J. M., Klimeš L., Klimešová J., Klotz S., Rusch G. M., Hermy M., Adriaens D., Boedeltje G.,
Bossuyt B., Dannemann A., Endels P., Götzenberger L., Hodgson J. G., Jackel A. K., Kühn I., Kunzmann D.,
OzingaW. A., Romermann C., Stadler M., Schlegelmilch J., Steendam H. J., Tackenberg O., Wilmann B.,
Cornelissen J. H. C., Eriksson O., Garnier E. & Peco B. (2008) The LEDA Traitbase: a database of life-history
traits of the Northwest European flora. – Journal of Ecology 96: 1266–1274.
Pierce S., Negreiros D., Cerabolini B. E. L., Kattge J., Díaz S., Kleyer M., Shipley B., Wright S. J.,
Soudzilovskaia N. A., Onipchenko V. G., van Bodegom P. M., Frenette-Dussault C., Weiher E., Pinho B. X.,
Cornelissen J. H. C., Grime J. P., Thompson K., Hunt R., Wilson P. J., Buffa G., Nyakunga O. C., Reich P. B.,
CaccianigaM., Mangili F., Ceriani R. M., Luzzaro A., Brusa G., Siefert A., Barbosa N. P. U., Chapin F. S.,
Cornwell W. K., Fang J., Fernandes G. W., Garnier E., Le Stradic S., Peńuelas J., Melo F. P. L., Slaviero A.,
Tabarelli M. & Tampucci D. (2017) A global method for calculating plant CSR ecological strategies
applied across biomes world-wide. – Functional Ecology 31: 444–457.
Tavşanoğlu Ç. & Pausas J. G. (2018) A functional trait database for Mediterranean Basin plants. – Scientific
Data 5: 180135.
Grime (1974, 1979) distinguished three basic ecological strategies of plants: (i) competitive strategy (C), advantageous in stable habitats where resources are abundant, conditions not extreme and the disturbance level low; (ii) stress-tolerant strategy (S), advantageous where resources are scarce, conditions severe and highly variable, but disturbance is uncommon; and (iii) ruderal strategy (R), advantageous where resources are abundant and conditions not extreme, but the disturbance frequency is high.
Taxa of the Czech flora were assigned to life strategies based on the method proposed by Pierce et al. (2017). The life strategies calculated using this method represent the trade-off in resource investment between three key leaf traits: leaf area (LA; high in competitive taxa), leaf dry matter content (LDMC; high in stress-tolerant taxa) and specific leaf area (SLA; high in ruderal taxa). Scores that express the degree of C-, S- and R-selection are calculated from these traits. These scores are expressed on a percentage scale, and the sum of the three scores for individual taxa is 100%. Based on these scores, the taxa are assigned to the basic primary strategies C, S and R, intermediate strategies CS, CR, SR and CSR, and transitions between them, e.g. C/CS or SR/CSR (sensu Grime 1979). The data on leaf traits for these calculations or calculated values were taken from the LEDA database (Kleyer et al. 2008) and some other sources (Bjorkman et al. 2018, Dayrell et al. 2018, Findurová 2018, Tavşanoğlu & Pausas 2018, Wang et al. 2018, Guo et al. 2019). The Pladias database contains both the score values for the three categories C, S, R and the categorized life strategies.
Guo W.-Y. & Pierce S. (2019) Life strategy. – www.pladias.cz.
Bjorkman A. D., Myers-Smith I. H., Elmendorf S. C. et al. (2018) Tundra Trait Team: A database of plant traits spanning the tundra biome. – Global Ecology and Biogeography 27: 1402–1411.
Dayrell R. L., Arruda A. J., Pierce S., Negreiros D., Meyer P. B., Lambers H. & Silveira F. A. (2018)
Ontogenetic shifts in plant ecological strategies. – Functional Ecology 32: 2730–2741.
Findurová A. (2018) Variabilita listových znaků SLA a LDMC vybraných druhů rostlin České republiky [Variability
of leaf traits SLA and LDMC in selected species of the Czech flora]. – Master thesis, Masaryk University, Brno.
Grime J. P. (1974) Vegetation classification by reference to strategies. – Nature 250: 26–31.
Grime J. P. (1979) Plant strategies and vegetation processes. – Wiley, Chichester.
Kleyer M., Bekker R. M., Knevel I. C., Bakker J. P., Thompson K., Sonnenschein M., Poschlod P., van
Groenendael J. M., Klimeš L., Klimešová J., Klotz S., Rusch G. M., Hermy M., Adriaens D., Boedeltje G.,
Bossuyt B., Dannemann A., Endels P., Götzenberger L., Hodgson J. G., Jackel A. K., Kühn I., Kunzmann D.,
OzingaW. A., Romermann C., Stadler M., Schlegelmilch J., Steendam H. J., Tackenberg O., Wilmann B.,
Cornelissen J. H. C., Eriksson O., Garnier E. & Peco B. (2008) The LEDA Traitbase: a database of life-history
traits of the Northwest European flora. – Journal of Ecology 96: 1266–1274.
Pierce S., Negreiros D., Cerabolini B. E. L., Kattge J., Díaz S., Kleyer M., Shipley B., Wright S. J.,
Soudzilovskaia N. A., Onipchenko V. G., van Bodegom P. M., Frenette-Dussault C., Weiher E., Pinho B. X.,
Cornelissen J. H. C., Grime J. P., Thompson K., Hunt R., Wilson P. J., Buffa G., Nyakunga O. C., Reich P. B.,
CaccianigaM., Mangili F., Ceriani R. M., Luzzaro A., Brusa G., Siefert A., Barbosa N. P. U., Chapin F. S.,
Cornwell W. K., Fang J., Fernandes G. W., Garnier E., Le Stradic S., Peńuelas J., Melo F. P. L., Slaviero A.,
Tabarelli M. & Tampucci D. (2017) A global method for calculating plant CSR ecological strategies
applied across biomes world-wide. – Functional Ecology 31: 444–457.
Tavşanoğlu Ç. & Pausas J. G. (2018) A functional trait database for Mediterranean Basin plants. – Scientific
Data 5: 180135.
Data on the presence of leaves on the plant, their metamorphoses and reductions are based on the Flora of the Czech Republic (vols. 1–8; Hejný et al. 1988–1992, Slavík et al. 1997–2004, Štěpánková et al. 2010) and the Key to the Flora of the Czech Republic (Kubát et al. 2002).
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky
[Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Kubát K., Hrouda L., Chrtek J. Jr., Kaplan Z., Kirschner J. & Štěpánek J. (eds) (2002) Klíč ke květeně České
republiky [Key to the flora of the Czech Republic]. – Academia, Praha.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Four basic types of leaf arrangement are distinguished: alternate, opposite, verticillate (whorled) and rosulate (in the basal rosette). The character is assessed in well-developed plants, i.e. not in individuals re-sprouting after damage by mowing or grazing or those with teratological modifications. More than one character state may occur (e.g. Hylotelephium jullianum and Salix purpurea) in some taxa: all character states are recorded in such cases.
In some plants, the arrangement of frondose bracts in the inflorescence is assessed separately (e.g. true leaves in Veronica persica and V. polita are opposite, while bracts are alternate). Leaves with interpetiolar stipules found in the Rubiaceae family are considered as whorled. The leaves in Rhamnus cathartica are considered as opposite, although in most cases they are sub-opposite.
The information was extracted mainly from the descriptions in the Flora of the Czech Republic (vols. 1–8; Hejný et al. 1988–1992, Slavík et al. 1997–2004, Štěpánková et al. 2010). In cases of uncertainties, mainly for alien taxa, additional sources were consulted, including the Flora of North America (Flora of North America Editorial Committee 1993), the Flora of China (Wu et al. 1994) and the Flora of Pakistan (www.tropicos.org/Project/Pakistan).
Grulich V., Holubová D., Štěpánková P. & Řezníčková M. (2017) Leaf arrangement. – www.pladias.cz.
Flora of North America Editorial Committee (eds) (1993) Flora of North America North of Mexico. – Oxford
University Press, New York.
Flora of Pakistan. – http://www.tropicos.org/Project/Pakistan
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky [Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Wu Z., Raven P. H. & Huang D. (eds) (1994) Flora of China. – Science Press, Beijing & Missouri Botanical
Garden, St. Louis.
The primary distinction is made between simple and compound leaves. The simple leaves are categorized based on the leaf blade division associated with venation into palmately divided (e.g. Alchemilla), pinnately divided (e.g. Achillea millefolium), forked (e.g. Batrachium, Ceratophyllum and Utricularia) and pedate (e.g. Helleborus). The categorization is based on well-developed leaves. In many taxa, transitions occur between simple leaves with a dentate or serrate margin, and simple divided (pinnately or palmately lobed) leaves. Only the leaves with the lamina divided to at least one-quarter of their width are considered as divided. Many taxa with varying leaf division are assigned to more than one character state.
The compound leaves are divided into palmate and pinnate. The taxa that have both ternate and pinnate leaves, the latter with two pairs of leaflets (e.g. Aegopodium podagraria and some other species of the Apiaceae family), are assigned to both character states. The degree of division in pinnately compound leaves indicated here relates to well-developed leaves, especially to the basal part of the lamina. Taxa with multiple pinnately compound leaves are assigned to two or more character states based on the level of division, but very small leaves, which may correspond to simple leaves, are not considered.
In many cases, there are transitions between simple and compound leaves, especially between pinnatisect and pinnate leaves. Leaves with linear or filiform segments, including the bi-, tri- or even more-pinnatisect or palmatisect leaves (e.g. stem leaves in Batrachium fluitans, Cardamine pratensis and the genus Seseli) are classified as simple (dissected) leaves. In contrast, leaves with broader segments attached to the rachis by a distinct constriction or a petiolule (e.g. stem leaves in Cardamine dentata or ground leaves in Pimpinella saxifraga) are classified as compound.
In heterophyllous taxa, all types of leaves are assessed, and the taxon is assigned to two or more character states. However, less divided leaves found in juvenile plants of some taxa are not considered heterophyllous. The parasitic plants with rudimentary (vestigial) leaves (e.g. Cuscuta) or the plants with phylloclades replacing the vestigial leaves (e.g. Asparagus) are assigned the character state “reduced”.
The information was extracted mainly from the descriptions in the Flora of the Czech Republic (vols. 1–8; Hejný et al. 1988–1992, Slavík et al. 1997–2004, Štěpánková et al. 2010). In uncertain cases, mainly for alien taxa, additional sources were consulted, including the Flora of North America (Flora of North America Editorial Committee 1993), the Flora of China (Wu et al. 1994) and the Flora of Pakistan (www.tropicos.org/Project/Pakistan).
Grulich V., Holubová D., Štěpánková P. & Řezníčková M. (2017) Leaf shape. – www.pladias.cz.
Flora of North America Editorial Committee (eds) (1993) Flora of North America North of Mexico. – Oxford
University Press, New York.
Flora of Pakistan. – http://www.tropicos.org/Project/Pakistan
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky [Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Wu Z., Raven P. H. & Huang D. (eds) (1994) Flora of China. – Science Press, Beijing & Missouri Botanical
Garden, St. Louis.
Stipules, i.e. paired leaflike appendages at the base of the petiole or sessile leaf blade, can be present or absent. Caducous stipules, i.e. those disappearing soon after the leaf blade has developed (e.g. Prunus), are considered as present. The interpetiolar stipules, morphologically indistinguishable from true leaves and together forming whorls (e.g. Rubiaceae), are considered as true stipules. In contrast, stipules modified into glands (e.g. Lotus) or hairs (e.g. Portulacaceae) are not considered as stipules here.
Information about the presence of stipules was extracted from the descriptions in the Flora of the Czech Republic (vols. 1–8; Hejný et al. 1988–1992, Slavík et al. 1997–2004, Štěpánková et al. 2010). In cases of uncertainties, mainly concerning alien taxa, descriptions in the Flora of North America (Flora of North America Editorial Committee 1993), the Flora of China (Wu et al. 1994) and the Flora of Pakistan (www.tropicos.org/Project/Pakistan) were consulted.
Grulich V., Holubová D., Štěpánková P. & Řezníčková M. (2017) Stipules. – www.pladias.cz.
Flora of North America Editorial Committee (eds) (1993) Flora of North America North of Mexico. – Oxford
University Press, New York.
Flora of Pakistan. – http://www.tropicos.org/Project/Pakistan
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky [Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Wu Z., Raven P. H. & Huang D. (eds) (1994) Flora of China. – Science Press, Beijing & Missouri Botanical
Garden, St. Louis.
Leaf petiole can be present or absent. In some plants, it can be present in some leaves but absent in others. The data were extracted from the Flora of the Czech Republic (vols. 1–8; Hejný et al. 1988–1992, Slavík et al. 1997–2004, Štěpánková et al. 2010), the Key to the Flora of the Czech Republic (Kubát et al. 2002), the New Hungarian Herbal (Király et al. 2011) and the Excursion Flora of Germany (Jäger & Werner 2000).
Prokešová H. & Grulich V. (2017) Petiole. – www.pladias.cz.
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky [Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Jäger E. J. & Werner K. (eds) (2000) Rothmaler, Exkursionsflora von Deutschland. Band 3. Gefäßpflanzen: Atlasband. Ed. 10. – Spectrum Akademischer Verlag, Heidelberg & Berlin.
Király G., Virók V. & Molnár V. (eds) (2011) Új Magyar füvészkönyv. Magyarország hajtásos növényei: ábrák [New Hungarian Herbal. The vascular plants of Hungary: Figures]. – Aggteleki Nemzeti Park Igazgatóság, Jósvafő.
Kubát K., Hrouda L., Chrtek J. Jr., Kaplan Z., Kirschner J. & Štěpánek J. (eds) (2002) Klíč ke květeně České republiky [Key to the flora of the Czech Republic]. – Academia, Praha.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Leaves of different woody plant species have distinct phenological patterns. Most species of Central European woody plants have winter-deciduous leaves, while a small proportion has evergreen (persistent-green) leaves. Semi-deciduous leaves are rare, occurring mainly in cultivated species. The category of winter semi-deciduous leaves includes only the leaves that are at least partly green in winter, not marcescent leaves, which die out in autumn and remain attached, in a dry state, to the maternal plant over the winter (e.g. young individuals of Quercus).
Data on leaf deciduousness were extracted from the Flora of the Czech Republic (vols. 1–8; Hejný et al. 1988–1992, Slavík et al. 1997–2004, Štěpánková et al. 2010), Key to the Flora of the Czech Republic (Kaplan et al. 2019), floras of some other countries, and complemented by original observations.
Štěpánková P. & Grulich V. (2020) Leaf deciduousness in woody plants. – www.pladias.cz
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky [Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Kaplan Z., Danihelka J., Chrtek J. Jr., Kirschner J., Kubát K., Štěpánek J. & Štech M. (eds) (2019) Klíč ke květeně České republiky [Key to the flora of the Czech Republic]. Ed. 2. – Academia, Praha.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Functional leaf types in woody plants, often used for physiognomic classification of forest and scrub vegetation, are distinguished based on their morphology, anatomy and life span. Most angiosperm woody plants of the central-European flora have broad deciduous or semi-deciduous leaves, which have a large specific leaf area. The other leaf types are, with rare exceptions (Larix), perennial and usually called evergreen. Needle-like and scale-like leaves occur in conifers and some species of Ericaceae. Sclerophyllous leaves are flat but have a strongly developed sclerenchyma, which causes their toughness. They are usually small coriaceous leaves with small specific leaf area, adapted to dry climate. Laurophyllous leaves are larger and thinner than sclerophyllous leaves and have a smaller amount of sclerenchyma. In most cases, they are dark green, smooth and shiny. These leaves are adapted to year-round wet climates with mild winters. A few species that are difficult to assign to these categories are classified as “special type”.
The data on functional leaf types were taken from the Flora of the Czech Republic (vols. 1–8; Hejný et al. 1988–1992, Slavík et al. 1997–2004, Štěpánková et al. 2010), Key to the Flora of the Czech Republic (Kaplan et al. 2019), floras of some other countries, and complemented by original observations.
Štěpánková P. & Grulich V. (2020) Functional leaf type in woody plants. – www.pladias.cz.
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky [Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Kaplan Z., Danihelka J., Chrtek J. Jr., Kirschner J., Kubát K., Štěpánek J. & Štech M. (eds) (2019) Klíč ke květeně České republiky [Key to the flora of the Czech Republic]. Ed. 2. – Academia, Praha.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Myrmecochorous plants, i.e. taxa dispersed by ants, possess an elaiosome, a nutrient-rich fleshy appendage of seed or fruit. However, in many taxa, the morphological indication or direct evidence of myrmecochory is equivocal. Removal experiments (seeds with and without elaiosome offered to ants) or chemical analysis (different nutrient content between seed and elaiosome; Konečná et al. 2018) would be needed to decide whether the appendage is elaiosome or not. Therefore, more categories than a simple binary distinction between myrmecochorous and non-myrmecochorous are recognized here:
Plant taxa that are often carried by ants to the nest although having no elaiosome (e.g. cheaters in this plant-ant mutualism or plant parts used as a building material for ant hills) are classified as non-myrmecochorous.
The data are based on the literature search and examination of seed samples of the taxa that are reported as myrmecochorous and their closely related congenerics. The list of these taxa with seed images is available at http://botanika.prf.jcu.cz/myrmekochorie/. These taxa were selected from the families represented in the Czech flora that contain at least one taxon reported as myrmecochorous in the literature (Sernander 1906, Hejný et al. 1988 onwards, Fitter & Peat 1994, Klotz et al. 2002, Grime et al. 2007, Kleyer et al. 2008, Servigne 2008, Lengyel et al. 2010, Študent 2012). Such taxa were found in 37 families including Amaryllidaceae, Apiaceae, Apocynaceae, Aristolochiaceae, Asparagaceae, Asteraceae, Boraginaceae, Campanulaceae, Caryophyllaceae, Celastraceae, Colchicaceae, Crassulaceae, Cyperaceae, Dipsacaceae, Euphorbiaceae, Fabaceae, Iridaceae, Juncaceae, Lamiaceae, Liliaceae, Linaceae, Montiaceae, Orobanchaceae, Oxalidaceae, Papaveraceae, Plantaginaceae, Poaceae, Polygalaceae, Polygonaceae, Portulacaceae, Primulaceae, Ranunculaceae, Resedaceae, Rosaceae, Santalaceae, Urticaceae and Violaceae. All the taxa not belonging to these families were classified as non-myrmecochorous (b).
For each of the five categories, a subcategory nv (= non vidimus, i.e. not seen) is used in the taxa for which we found neither information in the literature nor a photograph of a seed, and failed to collect seeds from living plants, but the assignment to the category is likely based on the traits of closely related taxa. For example, we have no data for Centaurea bruguiereana but we classify it as myrmecochorous nv, because all the taxa of Centaurea for which we have data possess an elaiosome.
Konečná M., Štech M. & Lepš J. (2018) Myrmecochory. – www.pladias.cz.
Fitter A. H. & Peat H. J. (1994) The Ecological Flora Database. – Journal of Ecology 82: 415–425.
Grime J. P., Hodgson J. G. & Hunt R. (eds) (2007) Comparative plant ecology: a functional approach to common British species. 2nd edition. – Castlepoint Press, Colvend, Dalbeattie.
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky [Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Kleyer M., Bekker R. M., Knevel I. C., Bakker J. P., Thompson K., Sonnenschein M., Poschlod P., van Groenendael J. M., Klimeš L., Klimešová J., Klotz S., Rusch G. M., Hermy M., Adriaens D., Boedeltje G., Bossuyt B., Dannemann A., Endels P., Götzenberger L., Hodgson J. G., Jackel A. K., Kühn I., Kunzmann D., Ozinga W. A., Romermann C., Stadler M., Schlegelmilch J., Steendam H. J., Tackenberg O., Wilmann B., Cornelissen J. H. C., Eriksson O., Garnier E. & Peco B. (2008) The LEDA Traitbase: a database of life-history traits of the Northwest European flora. – Journal of Ecology 96: 1266–1274.
Klotz S., Kühn I. & Durka W. (eds) (2002) BIOLFLOR: eine Datenbank mit biologisch-ökologischen Merkmalen zur Flora von Deutschland. – Schriftenreihe für Vegetationskunde 38: 1–334.
Konečná M., Moos M., Zahradníčková H., Šimek P. & Lepš J. (2018) Tasty rewards for ants: differences in elaiosome and seed metabolite profiles are consistent across species and reflect taxonomic relatedness. – Oecologia 188: 753–764.
Sernander R. (1906) Entwurf einer Monographie der europäischen Myrmekochoren. – Kungliga Svenska Vetenskapsakademiens Handlingar 41: 1–410.
Servigne P. (2008) Etude expérimentale et comparative de la myrmécochorie: le cas des fourmis dispersatrices Lasius niger et Myrmica rubra. – PhD thesis, Université libre de Bruxelles, Bruxelles.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Študent V. (2012) Společné funkční vlastnosti myrmekochorních druhů rostlin České republiky a sezónní a denní dynamika odnosu diaspor všivce lesního (Pedicularis sylvatica) mravenci [Traits of myrmecochorous plants of the Czech Republic and a seasonal and daily seed’s removal dynamics of lousewort (Pedicularis sylvatica) by ants]. – Master thesis, University of South Bohemia, České Budějovice.
Plant parasitism is based on either of two mechanisms. The first group of parasitic plants involves those parasitizing directly on another plant. These plants are called haustorial parasites. They take resources from the host’s vascular bundles using a specialized organ, the haustorium. The second group comprises mycoheterotrophic plants, which parasitize fungi via mycorrhizal interaction and gain organic carbon from them.
Plants in both groups display variable dependence on their host organism. The haustorial parasites include two distinct functional groups: green hemiparasites and holoparasites. Green hemiparasites are partial parasites that retain photosynthetic ability but obtain all mineral resources and a part of the organic carbon from the host. Holoparasites are non-green full parasites unable to photosynthesize. Location of the haustorial attachment to the host (root or stem) is another essential functional trait. The distinction between partial and full parasitism in haustorial parasites may not be straightforward. In the Czech flora, it is nevertheless possible to distinguish between stem hemi- and holoparasites, which are difficult to separate on the global scale (Těšitel 2016). Consequently, we use a traditional classification here and classify as holoparasites those plants that are in adulthood mostly without chlorophyll, even though some of them might have some chlorophyll and perform residual photosynthesis (e.g. Cuscuta).
In mycoheterotrophic plants, there is a continuum from initial mycoheterotrophs through partial mycoheterotrophs to full mycoheterotrophs. In the initial mycoheterotrophs, only initial stages, i.e. gametophytes or seedlings, are dependent on the fungus, whereas adult plants are autotrophic, while still depending on mycorrhizal symbiosis as a source of water and mineral nutrients. In the partial mycoheterotrophs, photosynthesizing adults obtain from their mycorrhizal fungi not only water and mineral nutrients but also different amounts of organic carbon. The full mycoheterotrophs lost their chlorophyll and are thus fully parasitic. In some partial mycoheterotrophs (e.g. the genus Cephalanthera), chlorotic individuals can be found, which lack chlorophyll and fully depend on their hosts.
Classification of haustorial parasites follows Těšitel (2016) with a further distinction of stem hemi- and holoparasites, and identification of mycoheterotrophs follows Merckx (2012).
Těšitel J., Těšitelová T., Blažek P. & Lepš J. (2016) Parasitism and mycoheterotrophy. – www.pladias.cz.
Těšitel J. (2016) Functional biology of parasitic plants: a review. – Plant Ecology and Evolution 149: 5–20.
Merckx V. S. F. T. (2012) Mycoheterotrophy: the biology of plants living on fungi. – Springer, Berlin.
Carnivorous plants attract, trap and kill their prey, animals (mainly insects and small crustaceans) and protozoans, and subsequently absorb the nutrients from their dead bodies.
Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds) (1988) Květena České socialistické republiky [Flora of the Czech Socialist Republic]. Vol. 1. – Academia, Praha.
Hejný S., Slavík B., Hrouda L. & Skalický V. (eds) (1990) Květena České republiky [Flora of the Czech Republic]. Vol. 2. – Academia, Praha.
Hejný S., Slavík B., Kirschner J. & Křísa B. (eds) (1992) Květena České republiky [Flora of the Czech Republic]. Vol. 3. – Academia, Praha.
Slavík B., Chrtek J. jun. & Štěpánková J. (eds) (2000) Květena České republiky [Flora of the Czech Republic]. Vol. 6. – Academia, Praha.
Slavík B., Chrtek J. jun. & Tomšovic P. (eds) (1997) Květena České republiky [Flora of the Czech Republic]. Vol. 5. – Academia, Praha.
Slavík B., Smejkal M., Dvořáková M. & Grulich V. (eds) (1995) Květena České republiky [Flora of the Czech Republic]. Vol. 4. – Academia, Praha.
Slavík B., Štěpánková J. & Štěpánek J. (eds) (2004) Květena České republiky [Flora of the Czech Republic]. Vol. 7. – Academia, Praha.
Štěpánková J., Chrtek J. jun. & Kaplan Z. (eds) (2010) Květena České republiky [Flora of the Czech Republic]. Vol. 8. – Academia, Praha.
Plants are classified into those without symbiotic nitrogen fixers and those that form a symbiosis with nitrogen-fixing bacteria. The latter are further divided into those forming a symbiosis with rhizobia (e.g. Allorhizobium, Bradyrhizobium, Mesorhizobium, Rhizobium and Sinorhizobium) and those forming the actinorhizal symbiosis with the genus Frankia, the latter called actinorhizal plants (Bond 1983, Pawlowski & Sprent 2007, Sprent 2008, Benson 2016).
In the Czech flora, the rhizobial group is represented by virtually all legumes (family Fabaceae). Exceptions are three non-native cultivated woody species (Cercis siliquastrum, Gleditsia triacanthos, Gymnocladus dioicus) that do not nodulate (Tedersoo et al. 2018), which is generally considered as evidence for the absence of symbiosis. However, some studies suggest that functional nitrogen-fixing symbiosis may exist even without visible nodules (Bryan et al. 1996). Roots of Gleditsia triacanthos were recorded to contain bacterial structures similar to those in nodules with rhizobia, as well as the presence of nitrogenase (Faria et al. 2002). These genera also contain genes probably related to nodule formation, although their exact function is unclear (Graves et al. 1999). Because convincing evidence of nitrogen fixation in these species is missing, we consider them non-nitrogen-fixing for the time being.
Symbiosis with rhizobia was found in several other families (Tedersoo et al. 2018). Of these, the Czech flora includes only casually introduced Tribulus terrestris (Zygophyllaceae), in which a parallel infection with cyanobacteria was described (Sabet 1946, Mahmood & Athar 1998).
The actinorhizal group is represented in the Czech flora mainly by alder species (Alnus spp.) and also by cultivated species in the family Elaeagnaceae – Elaeagnus spp. and Hippophaë rhamnoides (Bond 1983, Benson 2016).
Blažek P. & Lepš J. (2016) Symbiotic nitrogen fixation. – www.pladias.cz.
Benson D. R. (2016) Frankia & actinorhizal plants. – https://frankia.mcb.uconn.edu/ (accessed on 1 Feb 2021).
Bond G. (1983) Taxonomy and distribution of non-legume nitrogen-fixing systems. – In: Gordon J. C. & Wheeler C. T. (eds), Biological nitrogen fixation in forests: foundations and applications, p. 55–87, Martinus Nijhoff/Dr W. Junk Publ., The Hague.
Bryan J. A., Berlyn G. P. & Gordon J. C. (1996) Toward a new concept of the evolution of symbiotic nitrogen fixation in the Leguminosae. – Plant and Soil 186: 151–159.
de Faria S. M., Olivares F. L. & Xavier R. P. (2002) Nodule-structure in the roots of Gleditsia spp. a non-nodulating legume genus. – In: Pedrosa F. O., Hungria M., Yates G. & Newton W. E. (eds), Nitrogen fixation: from molecules to crop productivity. Current plant science and biotechnology in agriculture, vol 38. Springer, Dordrecht, p. 337.
Graves W. R., Foster C. M., Rosin F. M. & Schrader J. A. (1999) Two early nodulation genes are not markers for the capacity of leguminous nursery crops to form root nodules. – Journal of Environmental Horticulture 17: 126–129.
Mahmood A. & Athar M. (1998) Cyanobacterial root nodules in Tribulus terrestris L. (Zygophyllaceae). – In: Malik K. A. & Sajjad Mirza M. & Ladha J. K. (eds), Nitrogen fixation with non-legumes, Springer, Dordrecht, p. 345–350.
Pawlowski K. & Sprent J. I. (2007) Comparison between actinorhizal and legume symbioses. – In: Pawlowski K. & Newton W. E. (eds), Nitrogen-fixing actinorhizal symbioses, Springer, Dordrecht, p. 261–288.
Sabet Y. S. (1946) Bacterial root nodules in the Zygophyllaceae. – Nature 157: 656–657.
Sprent J. I. (2008) Evolution and diversity of legume symbiosis. – In: Dilworth M. J., James E. K., Sprent J. I. & Newton W. E. (eds), Nitrogen-fixing leguminous symbioses, Springer, Dordrecht, p. 1–21.
Tedersoo L., Laanisto L., Rahimlou S., Toussaint A., Hallikma T. & Pärtel M. (2018) Global database of plants with root-symbiotic nitrogen fixation: NodDB. – Journal of Vegetation Science 29: 560–568.
Taxa are classified according to whether they are native or alien to the Czech Republic. Following the definitions used in invasion ecology, native taxa are those that have evolved in the area of the Czech Republic or immigrated there without human assistance from the area where they had evolved. Alien taxa are those whose presence is a result of intentional or unintentional introduction by human activity and can be divided based on their residence time. The alien taxa are divided based on their residence time into archaeophytes and neophytes. Archaeophytes are taxa occurring in the wild that were introduced between the beginning of Neolithic agriculture and the year 1500, i.e. the beginning of intercontinental overseas trade after the discovery of the Americas. Neophytes are taxa occurring in the wild that were introduced after 1500 (see Richardson et al. 2000 for detailed definitions). Some taxa introduced in the Late Middle Ages or Early Modern Period, but with no exact information on the introduction date, were assigned to a joint category of Archaeophyte/neophyte. Additionally, some frequently cultivated taxa that are not known to have escaped from cultivation are listed as a separate category Cultivated. Category Lack of evidence of occurrence in the wild includes taxa for which spontaneous occurrence in the wild is doubtful. Taxa assigned to the category Absent in Czechia are not sufficiently supported by reliable records or occurred just once and disappeared.
The data included in the database follow the third edition of the Catalogue of alien plants of the Czech Republic (Pyšek et al. 2022 and references related to individual taxa therein).
Pyšek P., Sádlo J., Chrtek J. Jr., Chytrý M., Kaplan Z., Pergl J., Pokorná A., Axmanová I., Čuda J., Doležal J., Dřevojan P., Hejda M., Kočár P., Kortz A., Lososová Z., Lustyk P., Skálová H., Štajerová K., Večeřa M., Vítková M., Wild J. & Danihelka J. (2022) Catalogue of alien plants of the Czech Republic (3rd edition): species richness, status, distributions, habitats, regional invasion levels, introduction pathways and impacts. – Preslia 94: 447–577.
Richardson D. M., Pyšek P., Rejmánek M., Barbour M. G., Panetta F. D. & West C. J. (2000) Naturalization and invasion of alien plants: concepts and definitions. – Diversity and Distributions 6: 93–107.
The affinity of taxa to the forest environment is assessed using the categories of the German national list of forest taxa (Schmidt et al. 2011). Each taxon is assessed separately for the region of Thermophyticum (lowlands with thermophilous and drought-adapted flora) and merged regions of Mesophyticum and Oreophyticum (mid-elevations and mountains with mesophilous and mountain flora; Skalický 1988). The compilation was based on the list of regional species pools of Czech habitats (Sádlo et al. 2007), expert knowledge and various literature sources. It has been integrated into the European forest plant species list (Heinken et al. 2019).
Categories
Dřevojan P., Chytrý M., Sádlo J. & Pyšek P. (2016) Affinity to the forest environment. – www.pladias.cz.
Heinken T., Diekmann M., Liira J., Orczewska A., Brunet J., Chytrý M., Chabrerie O., de Frenne P., Decoq G.,
Dřevojan P., Dzwonko Z., Ewald J., Feilberg J., Graae B. J., Grytnes J. A., Hermy M., Kriebitzsch W.-U.,
Laivins M., Lindmo S., Marage D., Marozas V., Meirland A., Niemeyer T., Paal J., Pyšek P., Roosaluste E.,
Sádlo J., Schaminée J., Schmidt M., Tyler T., Verheyen K. & Wulf M. (2019) European forest plant species
list. – Fighshare, https://doi.org/10.6084/m9.figshare.8095217.v1.
Sádlo J., Chytrý M. & Pyšek P. (2007) Regional species pools of vascular plants in habitats of the Czech Republic. – Preslia 79: 303–321.
Schmidt M., KriebitzschW.-U. & Ewald J. (eds) (2011) Waldartenlisten der Farn- und Blütenpflanzen, Moose und Flechten Deutschlands. – BfN-Skripten 299: 1–111.
Skalický V. (1988) Regionálně fytogeografické členění [Regional phytogeographic division]. – In: Hejný S., Slavík B., Chrtek J., Tomšovic P. & Kovanda M. (eds), Květena České socialistické republiky [Flora of the Czech Socialist Republic] 1: 103–121, Academia, Praha.
National Red List categories were taken from the 2017 edition of the Red List of Vascular Plants of the Czech Republic (Grulich 2017). These categories, introduced in the previous editions of the Czech Red List, are different from the IUCN Red List categories. The main category “A” includes extinct or missing taxa, while the main category “C” includes endangered, near threatened and data deficient taxa.
Grulich V. (2017) Červený seznam cévnatých rostlin ČR [The Red List of vascular plants of the Czech Republic]. – Příroda 35: 75–132.
International Red List categories defined by the IUCN were taken from the 2017 edition of the Red List of Vascular Plants of the Czech Republic (Grulich 2017). Taxon assignments to these categories follow the internationally accepted rules (IUCN 2012, 2014). To some extent, the definitions of these categories differ from the national categories used in the previous Czech Red Lists. The national Red List included only threatened or possibly threatened taxa, implying that the non-included taxa are not threatened. Therefore, the non-included taxa are classified here as LC(NA) – least concern (taxon is not on the Red List).
Grulich V. (2017) Červený seznam cévnatých rostlin ČR [The Red List of vascular plants of the Czech Republic]. – Příroda 35: 75–132.
IUCN (2012) Guidelines for application of IUCN Red List criteria at regional and national levels. Version 4.0. – IUCN, Gland.
IUCN (2014) Guidelines for using the IUCN Red List categories and criteria. Version 11. – IUCN, Gland.
Legal protection in the Czech Republic concerns the specifically protected species, i.e. rare taxa, threatened taxa and taxa significant from a cultural or scientific point of view that are listed in Annex II of the Decree of the Ministry of the Environment no. 395/1992. They comprise 487 taxa of vascular plants divided into three categories according to their vulnerability: critically threatened, endangered and vulnerable.
Decree no. 395/1992 of the Ministry of the Environment of the Czech Republic.