Tetraneuris acaulis (Pursh) Greene
Stemless Four-nerve Daisy, Stemless Hymenoxys, Bitterweed
Asteraceae (Aster Family)
USDA Symbol: TEAC
From tufted basal leaves grow short leafless flower stalks ending with one yellow flower head.
This common species is highly variable, reaching its greatest complexity in Wyoming and western Colorado. A few plants may lack rays, some are very hairy, others nearly hairless; most have no stems below the flower stalk, but some do.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Size Notes: Up to about 1 foot tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: Yellow
Bloom Time: Apr , May , Jun , Jul , Aug , Sep , Oct
DistributionUSA: AZ , CA , CO , ID , KS , MT , ND , NE , NM , NV , OK , SD , TX , UT , WY
Native Distribution: S. Idaho to se. California; eastward to Texas, Ohio, North Dakota, and c. Canada.
Native Habitat: Open dry hillsides and dry plains.
Find Seed or Plants
View propagation protocol from Native Plants Network.
Web ReferenceWebref 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 resourcesUSDA: Find Tetraneuris acaulis in USDA Plants
FNA: Find Tetraneuris acaulis in the Flora of North America (if available)
Google: Search Google for Tetraneuris acaulis
MetadataRecord Modified: 2023-01-27
Research By: TWC Staff