|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
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|Family: Loasaceae||View Description||Dichotomous Key|
|Genus: Mentzelia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Mentzelia crocea Kellogg
Habit: Annual 34--100 cm. Stem: erect, hairy. Leaf: 1--40 cm, lower lobed, upper toothed to lobed. Inflorescence: bracts ovate to obovate, 6--10-toothed, green. Flower: sepals 7--20 mm; petals 21--36 mm, 8--17(21) mm wide, elliptic to obovate, yellow, base generally orange; stamens 11--28 mm, outer > inner; style 20--35 mm. Fruit: erect to curved < 45°, 20--35 mm, 3--5 mm wide, obconic. Seed: 1.5--2 mm, irregular-rounded to -angular, tan, dark-mottled; seed coat cells minute, domed to pointed. Chromosomes: 2n=36.
Ecology: Rocky slopes, roadsides, grassland, oak/pine woodland; Elevation: < 1700 m. Bioregional Distribution: c&s SNF, s SNH. Flowering Time: May--Jun Note: Intergrades with Mentzelia lindleyi.
Synonyms: Mentzelia lindleyi Torr. & A. Gray subsp. crocea (Kellogg) C.B. Wolf
eFlora Treatment Author: Joshua M. Brokaw, John J. Schenk & Barry Prigge
Jepson Online Interchange
Previous taxon: Mentzelia congesta
Next taxon: Mentzelia desertorum
Citation for this treatment: Joshua M. Brokaw, John J. Schenk & Barry Prigge 2017. Mentzelia crocea, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=33231, accessed on March 22, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 22, 2017.