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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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Thelesperma ambiguum (Colorado greenthread)
Cliffe, Harry

Thelesperma ambiguum

Thelesperma ambiguum A. Gray

Colorado Greenthread

Asteraceae (Aster Family)

Synonym(s): Thelesperma fraternum, Thelesperma megapotamicum var. ambiguum

USDA Symbol: THAM4

USDA Native Status: L48 (N)


From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 20 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: Red , Yellow , Brown
Bloom Time: Mar , Apr , May , Jun


USA: CO , NM , OK , TX

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


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

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