Texas
Wildbuds

Thymophylla acerosa

(Pricklyleaf Dogweed)

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Thymophylla acerosa, East Contrabando Trails, Big Bend Ranch State Park 4721

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Thymophylla acerosa, East Contrabando Trails, Big Bend Ranch State Park 4704

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Thymophylla acerosa, East Contrabando Trails, Big Bend Ranch State Park 4707

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Thymophylla acerosa, East Contrabando Trails, Big Bend Ranch State Park 4713

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Thymophylla acerosa, Grapevine Hills, Big Bend National Park 3547

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Thymophylla acerosa, Grapevine Hills, Big Bend National Park 3542

Scientific Name Thymophylla acerosa (Dyssodia acerosa) USDA PLANTS Symbol THAC
Common Name Pricklyleaf Dogweed ITIS Taxonomic Serial No. 505493
Family Asteraceae (Sunflower) SEINet
Reference
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Description Habitat: Dry, rocky, calcareous soils.
Plant: Short perennial 4 to 10 inches tall; woody branches from base; strong odor.
Leaves: Very narrow, pointed opposite, linear leaves 3/8 to 3/4 inches long.
Inflorescence: Composite flower heads about 1 inch across, with 7 to 9 or more yellow rays and 18 to 25 yellow disk florets in the center.
Bloom Period: Throughout the year, mostly summer and fall.
References: SEINet and Southwest Desert Flora.
Note: Previously misidentified; corrected thanks to Chuck Sexton of Austin, TX.
BONAP Distribution Map

Map Color Key
Texas Status:
Native

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

© Tom Lebsack 2023