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|Family: Loasaceae||View Description||Dichotomous Key|
|Genus: Mentzelia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Mentzelia montana (Davidson) Davidson & Moxley
Habit: Annual 4--48 cm. Stem: erect, glabrous to hairy. Leaf: < 13 cm, lower lobed, upper entire to lobed. Inflorescence: dense to open; bracts lanceolate to obovate, 3--7-toothed, base +- white. Flower: sepals 1--4 mm; petals 2--6(8) mm, obovate, yellow, base generally orange; stamens 2--7 mm; style 1.5--3.5(6) mm. Fruit: erect to curved < 45°, 6--17(20) mm, 2--3 mm wide, cylindric to obconic. Seed: 1--1.5 mm, irregular-rounded to -angular (edges generally acute), tan, dark-mottled; seed coat cells generally pointed or domed, > 1/2 tall as wide on seed surface edges in age. Chromosomes: 2n=36.
Ecology: Open, generally disturbed slopes, flats, grassland, sagebrush scrub, conifer forest; Elevation: 600--3400 m. Bioregional Distribution: CaR, SN, TR, PR, SNE, n DMtns; Distribution Outside California: to Oregon, Colorado, Texas, northern Mexico. Flowering Time: Apr--Jul Note: Intermediate to Mentzelia congesta, Mentzelia veatchiana; intergrades with Mentzelia ravenii, Mentzelia gracilenta, Mentzelia veatchiana, Mentzelia albicaulis.
eFlora Treatment Author: Joshua M. Brokaw, John J. Schenk & Barry Prigge
Jepson Online Interchange
Previous taxon: Mentzelia micrantha
Next taxon: Mentzelia nitens
Citation for this treatment: Joshua M. Brokaw, John J. Schenk & Barry Prigge 2017. Mentzelia montana, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=33262, accessed on March 23, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 23, 2017.