Flaveria chlorifolia, the clasping yellowtops, is a North American plant species of Flaveria within the family Asteraceae. It is native to the southwestern United States (New Mexico, western Texas)[2] and northern Mexico (Chihuahua, Coahuila, Nuevo León).[3][4]
| Flaveria chlorifolia | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Flaveria |
| Species: | F. chlorifolia
|
| Binomial name | |
| Flaveria chlorifolia | |
| Synonyms[1] | |
| |
Flaveria chlorifolia is a perennial herb up to 200 cm (80 inches or 6 2/3 feet) tall. One plant can sometimes produce 150 or more flower heads in a branching array, each head with 9-14 yellow disc flowers but no ray flowers.[4][5]
Chemical composition
editQuercetin-3-sulfate 3'-sulfotransferase is an enzyme that uses 3'-phosphoadenylyl sulfate and quercetin 3-sulfate to produce adenosine 3',5'-bisphosphate and quercetin 3,3'-bissulfate. The enzyme can be found in F. chlorifolia.[6]
Ombuin 3-sulfate, the sulfate conjugate of ombuin, can be isolated from F. chlorifolia.[7]
References
edit- ^ "Tropicos".
- ^ Biota of North America Program 2014 county distribution map
- ^ SEINet, Southwestern Biodiversity, Arizona chapter
- ^ a b Flora of North America, Flaveria chlorifolia A. Gray, 1849. Clasping yellowtops
- ^ Powell, Albert Michael. 1979. Annals of the Missouri Botanical Garden 65(2): 611-613 description and commentary in English, distribution map on page 608
- ^ Varin L and Ibrahim RK (1989). "Partial purification and characterization of 3 flavonol-specific sulfotransferases from Flaveria chloraefolia". Plant Physiol. 90 (3): 977–981. doi:10.1104/pp.90.3.977. PMC 1061831. PMID 16666908.
- ^ Ombuin 3-sulphate from Flaveria chloraefolia. Denis Barron and Ragai K. Ibrahim, Phytochemistry, Volume 27, Issue 7, 1988, pages 2362-2363, doi:10.1016/0031-9422(88)80166-3
External links
edit- Flaveria chlorifolia, Encyclopaedia of Life
- photo of herbarium specimen collected in Nuevo León in 1992
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