Texas
Wildbuds

Gutierrezia microcephalum

(Smallhead Snakeweed)

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Gutierrezia microcephalum, Lost Mine Trail, Big Bend National Park 1122

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Gutierrezia microcephalum, Lost Mine Trail, Big Bend National Park 1145

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Gutierrezia microcephalum, Lost Mine Trail, Big Bend National Park 1133

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Gutierrezia microcephalum, Lost Mine Trail, Big Bend National Park 1127

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Gutierrezia microcephalum, Lost Mine Trail, Big Bend National Park 1129

Scientific Name Gutierrezia microcephala (Xanthocephalum microcephalum) USDA PLANTS Symbol GUMI
Common Name Threadleaf Snakeweed, Smallhead Snakeweed ITIS Taxonomic Serial No. 37482
Family Asteraceae (Sunflower) SEINet
Reference
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Description Habitat: Dry, gravelly or rocky limestone or gypsum soils in grasslands, brushlands or woodlands, often in disturbed or overgrazed areas; from 1,000 to 7,000 ft.
Plant: Perennial subshrub 12 to 40 inches tall, leafy, much-branched stems from a woody base.
Leaves: Alternate, primary leaves linear to linear-oblanceolate, 3/4 to 2 inches long and about 3/16-inch or less wide; often deciduous by flowering; clusters of shorter and narrower secondary leaves in axils of primary leaves; surfaces usually smooth and sticky.
Inflorescence: Many small composite yellow flower heads usually in clusters of 3 or more in corymbs atop the stems; each small blossom with 1 or 2 ray florets about 3/16-inch long and usually just one disk floret; phyllaries whitish or yellowish with green tips.
Bloom Period: June to October.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, Flora of North America and SEINet.
BONAP Distribution Map


Map Color Key
Texas Status:
Native

Banner photo of Lupinus ssp. by Rick Capozza, Austin TX

© Tom Lebsack 2023