|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Loasaceae||View Description||Dichotomous Key|
|Genus: Mentzelia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Mentzelia oreophila J. Darl.
Habit: Perennial herb 15--53 cm. Stem: erect, hairy. Leaf: lower 2--9 cm, 6--40 mm wide, oblanceolate to elliptic, +- wavy-dentate, upper shorter, deltate to cordate, base clasping. Inflorescence: bracts linear to lanceolate, entire, green. Flower: sepals 4--11 mm; petals 7--17 mm, 3--5 mm wide, yellow, tip obtuse to round; stamens 3--12 mm, filaments of 5 outermost generally 5--10(14) mm, 1.6--3 mm wide, oblanceolate, tip cut to notched or acute, with anther; style 5--9 mm. Fruit: erect, 5--10 mm, 6--11 mm wide, cup-shaped. Seed: +- 3.5 mm, +- 3 mm wide, lenticular, winged, white. Chromosomes: 2n=22.
Ecology: Washes, roadcuts, talus slopes of limestone soils; Elevation: 150--2200 m. Bioregional Distribution: W&I, DMoj, e DSon; Distribution Outside California: southern Nevada. Flowering Time: May--Jun
eFlora Treatment Author: Joshua M. Brokaw, John J. Schenk & Barry Prigge
Jepson Online Interchange
Previous taxon: Mentzelia obscura
Next taxon: Mentzelia pectinata
Citation for this treatment: Joshua M. Brokaw, John J. Schenk & Barry Prigge 2016. Mentzelia oreophila, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=33271, accessed on May 03, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 03, 2016.