Jepson eFlora: Taxon page
Vascular Plants of California
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Mentzelia veatchiana

Higher Taxonomy
Family: LoasaceaeView DescriptionDichotomous Key
Habit: Annual to subshrub; hairs needle-like, barbed, occasionally stinging. Leaf: alternate [opposite], generally +- pinnate-lobed; stipules 0. Inflorescence: cyme, raceme. Flower: bisexual, radial; sepals generally 5, generally persistent; petals generally 5, free or fused to each other or filament tube; stamens 5--many, filaments thread-like to flat, occasionally fused at base or in clusters; petal-like staminodes occasionally present; pistil 1, ovary inferior, chamber generally 1, placentas generally 3, parietal, style 1. Fruit: capsule or achene. Seed: 1--many.
Genera In Family: 18+ genera, 250 species: especially America (Africa, Pacific).
eFlora Treatment Author: Larry Hufford & Barry Prigge, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: MentzeliaView DescriptionDichotomous Key

Habit: Annual to perennial herb; hairs barbed to needle-like, not stinging; stems pale pink or generally +- white, branched or not. Leaf: linear to ovate, entire to pinnate-lobed; basal in rosettes, generally petioled; cauline generally sessile, +- reduced distally on stem. Inflorescence: generally cyme (or flower 1); bracts green to white, margin green. Flower: sepals lanceolate to deltate, persistent; petals generally 5, free, white to yellow or orange; stamens generally many, +- free, generally unequal, inner filaments generally thread-like; outermost stamens opposite sepal lobes generally modified, +- widened, or petal-like with anther or not; ovary generally cylindric, placentas generally 3, style thread-like, stigma 3-furrowed or -lobed. Fruit: capsule, cup-, barrel-, or urn-shaped to narrowly cylindric, occasionally curved. Seed: generally many, shape variable.
Species In Genus: +- 100 species: western North America, +- tropical America.
eFlora Treatment Author: Joshua M. Brokaw, John J. Schenk & Barry Prigge
Reference: Darlington 1934 Ann Missouri Bot Gard 21:103--226
Mentzelia veatchiana Kellogg
Habit: Annual 3--45 cm. Stem: erect, hairy. Leaf: 1--18 cm, lower lobed, upper toothed to lobed (entire). Inflorescence: bracts generally ovate, toothed to lobed (entire), base green to +- white. Flower: sepals 1--5 mm; petals 4--7(10) mm, obovate, orange to yellow, base generally red to orange; stamens 3--7 mm; style (3)3.5--6 mm. Fruit: erect to curved 40° (70°), 8--28 mm, 2--4 mm wide, obconic. Seed: 1--2 mm, irregularly angular, tan, dark-mottled, edges generally acute; seed coat cells generally pointed or domed, > 1/2 tall as wide on seed surface edges in age. Chromosomes: 2n=54.
Ecology: Loamy to sandy desert, grassland, scrub, oak/pine woodland; Elevation: 200--2500 m. Bioregional Distribution: n SNH, Teh, SnJV, SCoRI, TR, PR, GB, D; Distribution Outside California: Oregon, Nevada, Arizona, Baja California. Flowering Time: Mar--Jun Note: Yellow-petaled forms generally restricted to pine/oak woodland, grassland. Intergrades with Mentzelia gracilenta, Mentzelia ravenii, Mentzelia montana, Mentzelia albicaulis.
Jepson eFlora Author: Joshua M. Brokaw, John J. Schenk & Barry Prigge
Reference: Darlington 1934 Ann Missouri Bot Gard 21:103--226
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Botanical illustration including Mentzelia veatchiana

botanical illustration including Mentzelia veatchiana


Citation for this treatment: Joshua M. Brokaw, John J. Schenk & Barry Prigge 2012, Mentzelia veatchiana, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 21, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora,, accessed on April 21, 2019.

Mentzelia veatchiana
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© 2010 Neal Kramer
Mentzelia veatchiana
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© 2013 Neal Kramer
Mentzelia veatchiana
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© 2010 Neal Kramer
Mentzelia veatchiana
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© 2003 Barry Breckling
Mentzelia veatchiana
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© 2009 Thomas Stoughton
Mentzelia veatchiana
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© 2016 Steve Matson

More photos of Mentzelia veatchiana in CalPhotos

Geographic subdivisions for Mentzelia veatchiana:
n SNH, Teh, SnJV, SCoRI, TR, PR, GB, D;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.