Loasaceae

Jeweled blazingstar

Mentzelia speciosa Osterh.

Family: Loasaceae
Genus: Mentzelia

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Jeweled blazingstar (Mentzelia speciosa) — FlowerPhoto: Stephen Hornbeck, CC BY 4.0, from iNaturalist

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Common names

By language (1)

English: Jeweled blazingstar, Leechleaf blazingstar

Synonyms

Hesperaster speciosus (Osterh.) Osterh.
Mentzelia aurea Osterh.
Mentzelia sinuata (Rydb.) R.J.Hill
Nuttallia sinuata (Rydb.) Daniels
Nuttallia speciosa (Osterh.) Greene
Touterea sinuata Rydb.
Touterea speciosa (Osterh.) Rydb.

Flowers

In flower: June to July (from 11 flowering iNaturalist observations worldwide)

Characteristics

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

Photos

FlowerPhoto: Stephen Hornbeck, CC BY 4.0, from iNaturalist
Photo: Reid Hardin, CC BY 4.0, from iNaturalist
Photo: Stephen Hornbeck, CC BY 4.0, from iNaturalist
Photo: Jes Gray, CC BY 4.0, from iNaturalist
Photo: Alaina Krakowiak, CC BY 4.0, from iNaturalist
Photo: aiwendil, CC0, from iNaturalist
Photo: Jared Shorma, CC BY 4.0, from iNaturalist
Photo: My-Lan Le, CC BY 4.0, from iNaturalist
Photo: Stephen Hornbeck, CC BY 4.0, 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.