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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Tetradymia spinosa

Tetradymia spinosa Hook. & Arn.

Shortspine Horsebrush, Spiny Horsebrush

Asteraceae (Aster Family)


USDA Symbol: TESP2

USDA Native Status: L48 (N)


From the Image Gallery

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Plant Characteristics

Duration: Perennial
Habit: Subshrub , Shrub
Size Notes: Up to about 3 feet 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: Mar , Apr , May
Bloom Notes: No ray florets present, only disc florets.


USA: CA , CO , ID , MT , NM , NV , OR , UT , WY

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

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


Record Modified: 2019-05-17
Research By: CBR

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