Loasaceae

Spinyhair blazingstar

Mentzelia tricuspis A.Gray

Family: Loasaceae
Genus: Mentzelia

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Spinyhair blazingstar (Mentzelia tricuspis) — FlowerPhoto: Stan Shebs, CC BY-SA 4.0, from iNaturalist

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Common names

By language (1)

English: Spinyhair blazingstar

Synonyms

Acrolasia tricuspis (A.Gray) Davidson
Bicuspidaria tricuspis (A.Gray) Rydb.
Mentzelia tricuspis var. tricuspis
Nuttallia tricuspis (A.Gray) Davidson & Moxley

Flowers

In flower: March to May (from 123 flowering iNaturalist observations worldwide)

Characteristics

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

Photos

FlowerPhoto: Stan Shebs, CC BY-SA 4.0, from iNaturalist
FlowerPhoto: Matt Berger, CC BY 4.0, from iNaturalist
FlowerPhoto: Jon Eilers, CC0, from iNaturalist
FlowerPhoto: Dawn Nelson, CC BY 4.0, from iNaturalist
FlowerPhoto: Jon Eilers, CC0, from iNaturalist
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Jason Eckberg, CC BY 4.0, from iNaturalist
Photo: Stan Shebs, CC BY-SA 4.0, from iNaturalist
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons

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.