dcsimg
Image of Clasping Yellowtops
Creatures » » Plants » » Dicotyledons » » Composite Family »

Clasping Yellowtops

Flaveria chlorifolia A. Gray

Comments

provided by eFloras
Flaveria chlorifolia is widely distributed in the northern region of the Chihuahuan Desert and extends up the Pecos River drainage into central New Mexico and the Rio Grande River drainage to north of Las Cruces. The perfoliate leaves, succulent habit, relatively large, flat-topped clusters of discoid heads, and usually 2–4 pappus scales distinguish it. It may be considered primitive on the basis of habit, leaves, and pappus scales. It is not thought to be closely related to any other species of Flaveria.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 247, 248, 249 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
Perennials, to 200 cm (robust, glaucous). Stems erect to subdecumbent. Leaves sessile; blades oblong-ovate to lanceolate or hastate, (20–)30–100 × 10–40(–50) mm, bases connate-perfoliate, margins entire. Heads 25–150+ in paniculiform arrays. Calyculi of 1(–2) linear-lanceolate bractlets ca. 2 mm. Involucres oblong-urceolate, 5–7 mm. Phyllaries 5, oblong-lanceolate. Ray florets 0. Disc florets 9–14; corolla tubes 1.2–1.4 mm, throats narrowly funnelform, 2 mm. Cypselae narrowly oblanceolate to linear, 2.5–3 mm; pappi usually of 2–4 unequal, hyaline scales 0.2–1 mm, usually on 1 shoulder, rarely 0. 2n = 36.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 247, 248, 249 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Flaveria chlorifolia

provided by wikipedia EN

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 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

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Flaveria chlorifolia: Brief Summary

provided by wikipedia EN

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) and northern Mexico (Chihuahua, Coahuila, Nuevo León).

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.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN