Loasaceae

United blazingstar

Mentzelia congesta (Nutt.) Torr. & A.Gray

Family: Loasaceae
Genus: Mentzelia

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United blazingstar (Mentzelia congesta) — FlowerPhoto: Ben Sims, CC0, from iNaturalist

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Common names

By language (1)

English: United blazingstar

Synonyms

Acrolasia congesta (Nutt.) Rydb.
Acrolasia davidsoniana Abrams
Mentzelia congesta var. congesta
Mentzelia congesta var. davidsoniana (Abrams) J.F.Macbr.
Mentzelia davidsoniana (Abrams) Abrams
Trachyphytum congestum Nutt.

Characteristics

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

Photos

FlowerPhoto: Ben Sims, CC0, from iNaturalist
Photo: Jim Morefield from Nevada, USA, CC BY-SA 2.0, from Wikimedia Commons
Photo: Steve Matson, CC BY 4.0, from iNaturalist
Photo: Dominic Gentilcore, CC BY 4.0, from iNaturalist
Photo: Jim Morefield from Nevada, USA, CC BY-SA 2.0, from Wikimedia Commons
Photo: Trevor Van Loon, CC BY 4.0, from iNaturalist
Photo: George Williams, CC BY 4.0, from Wikimedia Commons
Photo: Steve Matson, CC BY 4.0, from iNaturalist
Photo: George Williams, CC BY 4.0, from Wikimedia Commons
Photo: Martin Purdy, CC BY 4.0, from iNaturalist
Photo: Martin Purdy, CC BY 4.0, from Wikimedia Commons
Photo: Aaron H, 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.