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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
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|Family: Onagraceae||View Description||Dichotomous Key|
|Genus: Oenothera||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Oenothera villosa Thunb. subsp. strigosa (Rydb.) W. Dietr. & P.H. Raven
Habit: Biennial, rosetted, minutely strigose, especially in inflorescence also glandular; hairs also long, spreading, generally with red, blister-like base. Stem: erect, 5--20 dm. Leaf: cauline 10--30 cm, lanceolate or elliptic, entire to minutely dentate. Inflorescence: spike, +- open, few-flowered; internodes in fruit generally > fruit. Flower: hypanthium 25--40 mm; sepals 9--18 mm, often marked +- red, free tips in bud 0.5--2.5 mm; petals 7--20 mm, yellow fading duller to pale orange. Fruit: 20--35 mm, 4--7 mm wide, +- cylindric, +- straight. Seed: 1--2 mm, angled, irregularly pitted. Chromosomes: 2n=14.
Ecology: Moist openings in forest; Elevation: especially 500--2000 m. Bioregional Distribution: KR, NCoRI (Tehama Co.), CaRH (Plumas Co.), MP; Distribution Outside California: to southwestern Canada, central United States. Flowering Time: Jul--Aug Note: Permanent translocation heterozygote.
Synonyms: Oenothera strigosa (Rydb.) Mack. & Bush; Oenothera biennis L., misappl.; Oenothera hookeri, misappl.
eFlora Treatment Author: Warren L. Wagner & Peter C. Hoch, family description, key to genera; treatment of genera by Warren L. Wagner
Jepson Online Interchange
Previous taxon: Oenothera suffrutescens
Next taxon: Oenothera wolfii
Citation for this treatment: Warren L. Wagner & Peter C. Hoch, family description, key to genera; treatment of genera by Warren L. Wagner 2016. Oenothera villosa subsp. strigosa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=51799, accessed on August 27, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on August 27, 2016.