dcsimg
Image of sticky snakeweed
Creatures » » Plants » » Dicotyledons » » Composite Family »

Broomweed

Gutierrezia texana (DC.) Torr. & A. Gray

Comments

provided by eFloras
Although the two varieties of Gutierrezia texana are similar, the geographic demarcation between them appears to be sharp, and a detailed investigation of their biologic interaction would be interesting.
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. 20: 89, 91 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
Annuals, 10–80(–100) cm. Stems glabrous. Leaves: proximal usually absent at flowering; cauline blades 1- or 3-nerved, linear , 1.5–4 mm wide, reduced distally. Heads in loose arrays. Involucres campanulate to obconic, 2–4.5 mm diam.. Phyllary apices flat. Ray florets 5–23; corollas yellow, 3–6 mm. Disc florets 7–48 (bisexual and fertile or functionally staminate). Cypselae 1.3–1.8 mm, faces without oil cavities, loosely strigose (hairs appressed, apices acute, microscopically 2-pronged); pappi of 1 series of spreading-erect, oblong to ovate or obovate scales 0.1–0.5 mm (bases sometimes connate, usually shorter in rays, sometimes 0 in var. texana).
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. 20: 89, 91 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

Synonym

provided by eFloras
Hemiachyris texana de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 314. 1836; Xanthocephalum texanum (de Candolle) Shinners
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. 20: 89, 91 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

Gutierrezia texana

provided by wikipedia EN

Gutierrezia texana is a North American species of flowering plant in the family Asteraceae known by the common name Texas snakeweed. It is native to the south-central United States (New Mexico, Texas, Oklahoma, southwestern Arkansas, northwestern Louisiana) and northern Mexico as far south as Guanajuato and Hidalgo.[2]

Gutierrezia texana is an annual, hairless herb up to 100 cm (39 in) in height. The plant produces numerous flower heads in loose arrays. Each head usually has 5-36 ray flowers (though sometimes no rays) plus 7–48 disc flowers.[3]

Varieties[1][3]
  • Gutierrezia texana var. glutinosa (S.Schauer) M.A.Lane
  • Gutierrezia texana var. texana

References

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

Gutierrezia texana: Brief Summary

provided by wikipedia EN

Gutierrezia texana is a North American species of flowering plant in the family Asteraceae known by the common name Texas snakeweed. It is native to the south-central United States (New Mexico, Texas, Oklahoma, southwestern Arkansas, northwestern Louisiana) and northern Mexico as far south as Guanajuato and Hidalgo.

Gutierrezia texana is an annual, hairless herb up to 100 cm (39 in) in height. The plant produces numerous flower heads in loose arrays. Each head usually has 5-36 ray flowers (though sometimes no rays) plus 7–48 disc flowers.

Varieties Gutierrezia texana var. glutinosa (S.Schauer) M.A.Lane Gutierrezia texana var. texana
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN