Biology:Chrysogonum
| Chrysogonum | |
|---|---|
| |
| Chrysogonum virginianum | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Heliantheae |
| Subtribe: | Engelmanniinae |
| Genus: | Chrysogonum L. |
| Type species | |
| Chrysogonum virginianum | |
| Synonyms[1] | |
| |
Chrysogonum is a genus of flowering plants in the family Asteraceae found in eastern North America. Confusion regarding species that were named in Chrysogonum from other parts of the world, such as Madagascar, was clarified by Stuessy[2] who reduced the genus to having only a single species with two varieties. A similar treatment was proposed by Nesom,[3] although in that treatment 3 varieties were accepted.[4] The plants are low-growing terrestrial herbs with yellow flower heads containing both disc florets and ray florets. The genus is distinctive in having pistillate ray florets and staminate disk florets, and the pistil of the ray floret is fused to the adjacent phyllary as well as 3 paleae and their associated disk florets to form a "cypsela complex". The species is grown as an ornamental plant under the common name of Green and Gold, and is used primarily as a ground cover.[5][6][7][8][9]
- Species
- Chrysogonum virginianum L. - eastern United States
References
- ↑ Flann, C (ed) 2009+ Global Compositae Checklist
- ↑ Stuessy, T. F. 1977. Revision of Chrysogonum (Compositae, Heliantheae). Rhodora 79: 190–202.
- ↑ Nesom, G. L. 2001. Taxonomic review of Chrysogonum (Asteraceae: Heliantheae). Sida 19: 811–820.
- ↑ Nowicki, Marcin; Schilling, Edward E.; Boggess, Sarah L.; Houston, Logan C.; Huff, Matthew L.; Staton, Margaret E.; Lampley, Jayne A.; Trigiano, Robert N. (February 2019). "Development and Characterization of Genic Microsatellites for the Ornamental Plant Green and Gold (Chrysogonum virginianum)". HortScience 54 (2): 395–400. doi:10.21273/HORTSCI13739-18. ISSN 0018-5345. https://journals.ashs.org/view/journals/hortsci/54/2/article-p395.xml.
- ↑ Linnaeus, Carl von. 1753. Species Plantarum 2: 920-921 in Latin
- ↑ Tropicos, Chrysogonum L.
- ↑ Flora of North America, Chrysogonum Linnaeus, Sp. Pl. 2: 920. 1753; Gen. Pl. ed. 5, 391. 1754.
- ↑ Nesom, G. L. 2001. Taxonomic review of Chrysogonum (Asteraceae: Heliantheae). Sida 19: 811–820.
- ↑ Stuessy, T. F. 1977. Revision of Chrysogonum (Compositae, Heliantheae). Rhodora 79: 190–202.
Wikidata ☰ Q5114835 entry
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