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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
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[1]
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 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

External links

• 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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