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Thymophylla acerosa (Prickly-leaf dogweed)
Brundage, Stephanie

Thymophylla acerosa

Thymophylla acerosa (DC.) Strother

Prickly-leaf Dogweed, Texas Dogweed, Shrubby Dogweed, Prickleleaf Dogweed, Prickleaf Dogweed, Fetid Marigold, Scrubby Dogweed

Asteraceae (Aster Family)

Synonym(s): Dyssodia acerosa


USDA Native Status: L48 (N)

Prickleleaf dogweed is a small plant, 4-10 inches tall, growing from a woody stem with several branches near the base. It has many slender, sharp-pointed leaves less than 1 inch long. The bright yellow flower heads, less than 1 inch across, are clustered at the ends of short stems.

The dogweeds are strong-scented plants. Just walking through them stirs up a lingering, unpleasant odor.


From the Image Gallery

24 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 10 inches tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Yellow
Bloom Time: Jun , Jul , Aug , Sep , Oct , Nov


USA: AZ , NM , NV , TX , UT


Bibref 995 - Native Landscaping from El Paso to L.A. (2000) Wasowski, S. and A. Wasowski
Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller

Search More Titles in Bibliography

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Thymophylla acerosa in USDA Plants
FNA: Find Thymophylla acerosa in the Flora of North America (if available)
Google: Search Google for Thymophylla acerosa


Record Modified: 2023-01-30
Research By: TWC Staff

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