Gutierrezia texana

Gutierrezia texana
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Gutierrezia
Species:	G. texana
Binomial name
	Gutierrezia texana; (DC.) Torr. & A. Gray 1842
Synonyms
	Synonymy Brachyris microcephala Hook. 1837 not DC. 1836 ; Hemiachyris texana DC. 1836 ; Xanthocephalum texanum (DC.) Shinners ; Gutierrezia berlandieri A.Gray, syn of var. glutinosa ; Gutierrezia glutinosa (S.Schauer) Sch.Bip., syn of var. glutinosa ; Hemiachyris glutinosa S.Schauer, syn of var. glutinosa ; Xanthocephalum sphaerocephalum, syn of var. glutinosa ;

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 edit

External links edit

USDA Plants Profile for Gutierrezia texana (Texas snakeweed)
Photo of herbarium specimen at Missouri Botanical Garden, collected in Texas in 1828 — isotype of Gutierrezia texana.

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[yelp-1] The Plant List, Gutierrezia texana (DC.) Torr. & A. Gray

[2] Biota of North America Program 2014 county distribution map

[maxine-3] Flora of North America, Gutierrezia texana (de Candolle) Torrey & A. Gray, 1842. Texas snakeweed

[2]

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