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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 rosea L'Hér. ex Aiton.
Habit: Perennial herb, rosetted when young, minutely and sometimes densely strigose (proximal stem sometimes also long-hairy). Stem: decumbent to ascending, 1--5(10) dm. Leaf: cauline 1.5--4 cm, oblanceolate to elliptic, generally +- entire to wavy-dentate. Inflorescence: flowers in distal axils. Flower: hypanthium 4--8 mm; sepals 5--8 mm, free tips in bud 1 mm; petals 5--10 mm, rose to rose-purple. Fruit: much wider toward tip; body 8--10 mm, 3--4 mm wide; valves each with median rib; stalk-like base 5--20 mm, ribbed, tapered. Seed: clustered in each chamber, 0.5--0.8 mm, obliquely oblanceolate, finely granular-papillate. Chromosomes: 2n=14.
Ecology: Disturbed places; Elevation: generally < 500 m. Bioregional Distribution: SCo; Distribution Outside California: native to Texas, Mexico, South America. Flowering Time: May--Jul Note: Doubtfully naturalized, 2 records from SCo, others cultivated. Self-pollinated. Permanent translocation heterozygote.
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 pubescens
Next taxon: Oenothera sinuosa
Citation for this treatment: Warren L. Wagner & Peter C. Hoch, family description, key to genera; treatment of genera by Warren L. Wagner 2016. Oenothera rosea, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=35048, accessed on May 24, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 24, 2016.