Mentzelia Linnaeus. Common name: Blazingstar.
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.
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.






Feedback
See something wrong or missing on about Mentzelia? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.