|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: Onagraceae||View Description||Dichotomous Key|
|Genus: Oenothera||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Oenothera xylocarpa Coville
Habit: Perennial herb, rosetted, gray-green; hairs short (on flower long, coarse), erect; taproot fleshy. Stem: 0. Leaf: main segment +- round to oblanceolate, 26--62 mm; lobes few, generally small. Inflorescence: flowers in axils. Flower: hypanthium 27--45(55) mm; sepals 25--30 mm, tips not free in bud; petals 25--38 mm, yellow fading deep salmon-red. Fruit: 35--90 mm, 7--11 mm wide, narrowly lanceolate, curved, twisted, wrinkled. Seed: in 1 row (or near base 2 rows) per chamber, 2.4--3.2 mm, obovate; tip generally truncate, coarsely wrinkled, papillate; 1 side with 2 small ridges. Chromosomes: 2n=14.
Ecology: Gravelly to pumice meadows, Jeffrey-pine or lodgepole-pine/fir forests; Elevation: 2200--3100 m. Bioregional Distribution: c&s SNH; Distribution Outside California: western Nevada. Flowering Time: Jul--Aug Note: Generally cross-pollinated. Locally common.
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 xenogaura
Next taxon: Taraxia
Citation for this treatment: Warren L. Wagner & Peter C. Hoch, family description, key to genera; treatment of genera by Warren L. Wagner 2017. Oenothera xylocarpa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=35066, accessed on February 26, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 26, 2017.