Chenopodium ×paradoxum

Flower colour is reported for nearly all angiosperms except duckweeds (Araceae p. p.) and some hybrids for which data on flower colour were not available.

If a species has more than one flower colour, all colours are reported irrespective of their frequency. This approach is used both for species that regularly form populations with different flower colours (e.g. Corydalis cava and Iris pumila) and for species with occasional occurrence of deviating flower colour (e.g. albinism in Salvia pratensis or pink flowers in Ajuga reptans). However, the whole range of variation is not fully reported in cultivated plants, for which some cultivars of different colour may be ignored (e.g. Gladiolus hortulanus and Callistephus chinensis). In plants with flowers of two colours (e.g. Cypripedium calceolus), both colours are reported. In plants with multi-coloured flowers (e.g. the variegated lip in Ophrys apifera) the predominant colour is reported.

If the flower has a well-developed perianth, the reported flower colour relates to the corolla or the tepals of the homochlamydeous perianth. If such a flower has bracts of a contrasting colour (e.g. Melampyrum nemorosum), their colour is not considered. If the corolla or the homochlamydeous perianth is not developed, the flower colour is based on the calyx (e.g. Daphne mezereum), bracts (e.g. Aristolochia clematitis), the system of bracts and bracteoles in the inflorescence (Euphorbia) or the involucre on secondary peduncles (Bupleurum longifolium). In species of Araceae with spadix and spathe of contrasting colours (e.g. Calla palustris) both colours are reported. The colour of the whole inflorescence is reported for some plants with reduced flowers (e.g. Betula, Salix, some Cyperaceae and Typhaceae). Spikelets in Poaceae are reported as green disregarding a possible violet tint; exceptions include the Melica ciliata agg. and Cortaderia that are reported as white. Also in other, rare cases, the inflorescence colour is reported as flower colour (e.g. green in Ficus carica). In Asteraceae, the colours of the disk flowers and ray flowers are reported separately if the ray flowers are developed and have a contrasting colour (e.g. Bellis perennis). The colour of the involucrum is reported for species with tiny flower heads and indistinct flowers (e.g. Artemisia campestris and Xanthium) and for “immortelles” (e.g. Helichrysum and Xeranthemum).

Information on flower colour is partly based on the field knowledge, partly obtained from various photographs and 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 the taxa that are not reported in the Flora of the Czech Republic, as well as in unclear cases (especially in alien species), other sources were used, especially 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 (http://www.tropicos.org/Project/Pakistan).

Categories

• white (including grey and silvery, and rare cases of individuals with white colour) – e.g. ray flowers of Leucanthemum vulgare, albinotic plants of Glechoma hederacea, catkins of Salix caprea
• yellow-white (including white-yellow and cream) – e.g. Scabiosa ochroleuca
• green-white (including white-green and greenish) – e.g. Orthilia secunda
• green – e.g. Poa pratensis (the colour relates to the glumes and lemmas)
• yellow-green (including green-yellow) – e.g. Acer pseudoplatanus, Rhamnus cathartica
• yellow – e.g. Taraxacum
• orange – e.g. Pilosella aurantiaca
• pink (including white-pink, pink-white and dark pink) – e.g. Malva alcea, Rosa canina
• pink-violet – e.g. Allium schoenoprasum
• red – e.g. Papaver rhoeas
• red-violet (includes all the hues of purple, pink-red and violet-red) – e.g. Astragalus onobrychis, Cirsium palustre
• violet (including dark violet and black-violet) – e.g. Bartsia alpina, Salvia verticillata
• blue – e.g. Centaurea cyanus
• blue-violet – e.g. Aconitum plicatum
• brown (including yellow-brown, brown-yellow, beige and brown-violet) – e.g. Euonymus verrucosus, Neottia nidus-avis
• red-brown – e.g. Asarum europaeum, Scrophularia nodosa
• black – e.g. Carex acuta (the colour relates to the colour of bracts)

Categories

• white
• yellow-white
• green-white
• green
• yellow-green
• yellow
• orange
• pink
• pink-violet
• red
• red-violet
• violet
• blue
• blue-violet
• brown
• red-brown
• black

Data source and citation

Štěpánková P. & Grulich V. (2019) Flower colour. – www.pladias.cz.

Further references

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.

Inflorescence types follow the morphological system used in the Flora of the Czech Republic (vols. 1–8; Hejný et al. 1988–1992, Slavík et al. 1997–2004, Štěpánková et al. 2010). As the Czech terminology used for inflorescences does not match the English terminology, we use Latin terms in the English version of the Pladias Database. The exact identification of the inflorescence type is often equivocal because of varying interpretations of the same object. In species with unisexual flowers, male and female flowers can occur in different inflorescence types. In other cases, it is not possible to identify the inflorescence without detailed knowledge of evolutionary morphology, e.g. umbella vs pseudumbella in the genus Butomus. There are also compound inflorescences, in some cases with very different structure of their parts, especially in Asteraceae, which can have even triple inflorescences (e.g. Echinops sphaerocephalus often has an anthella ex capitulis anthodiorum composita).

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). For the taxa not treated in that flora or if some uncertainties occurred, mainly concerning some alien taxa, information was taken from the 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). In critical groups (e.g. Rubus), especially in recently described species, inflorescence type was taken from the original descriptions.

Categories

• pseudumbella e cyathiis composita
• capitulum
• capitulum e floribus masculis compositum
• capitulum e spiculis compositum
• capitulum e verticillastris compositum
• capitulum e floribus femineis compositum
• capitulum ex anthodiis compositum
• racemus
• racemus e capitulis compositus
• racemus ex corymbis anthodiorum compositus
• racemus e spiculis compositus
• racemus e verticillastris compositus
• racemus ex umbellis compositus
• racemus e floribus masculis compositus
• racemus e floribus femineis compositus
• racemus e fasciculis compositus
• racemus ex anthodiis compositus
• racemus ex anthodiis masculis compositus
• racemus e cincinnis compositus
• corymbothyrsus
• corymbothyrsus e fasciculis compositus
• corymbothyrsus ex fasciculis anthodiorum compositus
• corymbothyrsus ex anthodiis compositus
• corymbus
• corymbus ex anthodiis compositus
• amentum
• amentum e floribus masculis
• amentum e floribus femineis
• spica
• spica e spiculis composita
• spica e floribus masculis composita
• spica e floribus femineis composita
• spicula
• anthella
• anthella ex capitulis anthodiorum composita
• anthella e spiculis composita
• anthella e floribus masculis composita
• anthella ex anthodiis composita
• flores solitarii
• flores solitarii masculi
• flores solitarii feminei
• panicula
• panicula e capitulis composita
• panicula ex capitulis anthodiorum composita
• panicula e corymbis composita
• panicula e spiculis composita
• panicula e spiculis masculis composita
• panicula e pseudospicis composita
• panicula e floribus masculis composita
• panicula e fasciculis composita
• panicula e bostrychibus composita
• panicula ex anthodiis composita
• panicula e dichasiis composita
• panicula e cincinnis composita
• pseudospica
• pseudospica e capitulis composita
• pseudospica e spiculis composita
• pseudospica e verticillastris composita
• pseudospica e floribus masculis composita
• pseudospica ex anthodiis composita
• pseudumbella
• pseudumbella ex anthodiis composita
• verticillastrum
• pseudoracemus
• umbella
• umbella e spicis spicularum composita
• spadix
• spadix e floribus femineis compositus
• umbella composita
• fasciculus
• fasciculus e floribus masculis compositus
• fasciculus e floribus femineis compositus
• fasciculus ex anthodiis femineis compositus
• syconium
• strobilus
• bostryx
• anthodium
• anthodium solitarium
• rhipidium
• dichasium
• dichasium e floribus femineis compositum
• dichasium ex anthodiis compositum
• cincinnus

Data source and citation

Grulich V. & Štěpánková P. (2019) Inflorescence type. – www.pladias.cz.

Further references

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.

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).

Categories

• native
• archaeophyte
• neophyte
• archaeophyte/neophyte
• cultivated only
• lack of evidence of occurrence in the wild
• absent in Czechia

Data source and citation

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.

Further references

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.