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Mentzelia Linnaeus. Common name: Blazingstar.

Key to Mentzelia

A genus of about 80 species, herbs, shrubs, and trees, of America, especially in sw. United States and Mexico.

ID notes: Plants have flowers solitary or in dichasia, 5-merous (in some species 5+ additional petaloid filaments can cause flowers to look superficially 10+ merous), stamens numerous (8-50+, usually strongly exerted), fruit a capsule with apical dehiscence, ovaries conspicuously inferior, and leaves usually pinnately lobed (sometimes sparsely palmately lobed in M. oligosperma and M floridana).

References: Hufford, Schenk, & Brokaw (2016); Moore, Kelly, & Schenk (2023); Weigend In Kubitzki et al. (2004). Show full citations.

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image of plant© Cleveland Powell, some rights reserved (CC BY), uploaded by Cleveland Powell | Mentzelia reverchonii source | Original Image ⭷
image of plant© Sequoia Janirella Wrens, some rights reserved (CC BY-NC), uploaded by Sequoia Janirella Wrens | Mentzelia nuda source | Original Image ⭷
image of plant© Matt Reala, some rights reserved (CC BY-NC), uploaded by Matt Reala | Mentzelia decapetala source | Original Image ⭷
image of plant© Matt Berger, some rights reserved (CC BY), uploaded by Matt Berger | Mentzelia oligosperma source | Original Image ⭷

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