Loasaceae

San Luis blazingstar

Mentzelia micrantha (Hook. & Arn.) Torr. & A.Gray

Family: Loasaceae
Genus: Mentzelia

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San Luis blazingstar (Mentzelia micrantha) — FlowerPhoto: velodrome, CC BY 4.0, from iNaturalist

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Common names

By language (1)

English: San Luis blazingstar

Synonyms

Acrolasia micrantha (Hook. & Arn.) Rydb.
Acrolasia micrantha var. stricta Davidson
Bartonia micrantha Hook. & Arn.
Mentzelia micrantha var. stricta (Davidson) Davidson

Flowers

In flower: May to June (from 51 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Forb/herb
Lifespan: Annual
In the US and Canada: Lower 48 states: native

Photos

FlowerPhoto: velodrome, CC BY 4.0, from iNaturalist
FlowerPhoto: Cristhian Mace, CC BY 4.0, from iNaturalist
FlowerPhoto: wildflowerwatching, CC BY 4.0, from iNaturalist
FlowerPhoto: Ken-ichi Ueda, CC BY 4.0, from iNaturalist
FlowerPhoto: George Williams, CC BY 4.0, from iNaturalist
Photo: Joe Decruyenaere, CC BY-SA 2.0, from Wikimedia Commons
Photo: Joe Decruyenaere, CC BY-SA 2.0, from Wikimedia Commons
Photo: joergmlpts, CC BY 4.0, from iNaturalist
Photo: Ken-ichi Ueda, CC BY 4.0, from iNaturalist
Photo: Dan Horowitz, CC0, from iNaturalist
Photo: John Cowles, CC0, from iNaturalist
Photo: John Cowles, CC0, from iNaturalist

More in Mentzelia

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.