Flaveria chlorifolia

Flaveria chlorifolia, the clasping yellowtops, is a North American plant species of yellowtops within the sunflower family. 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
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Flaveria
Species:
F. chlorifolia
Binomial name
Flaveria chlorifolia
Synonyms[1]
  • Flaveria chloraefolia A.Gray

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

Quercetin-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
  1. http://www.tropicos.org/Name/2702503
  2. Biota of North America Program 2014 county distribution map
  3. SEINet, Southwestern Biodiversity, Arizona chapter
  4. Flora of North America, Flaveria chlorifolia A. Gray, 1849. Clasping yellowtops
  5. Powell, Albert Michael. 1979. Annals of the Missouri Botanical Garden 65(2): 611-613 description and commentary in English, distribution map on page 608
  6. 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.
  7. 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


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