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|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:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Perennial herb, from thick taproot that may branch in age producing multiple rosettes, stem 0. Leaf: basal, simple, ovate or lanceolate to narrowly elliptic, nearly entire to deeply pinnately lobed. Inflorescence: flowers 1 in axils, erect in bud. Flower: radial, opening at dawn; sepals 4, reflexed separately; petals 4, yellow (or white), unspotted, strongly ultraviolet reflective (non-reflective at base), fading +- purple or +- red; stamens 8, longer ones opposite sepals, anthers attached at base, pollen grains 3-angled except in polyploid taxa (visible with hand lens); ovary chambers 4, stigma hemispheric, generally > anthers and cross-pollinated (or +- = anthers and self-pollinated), sterile projection of ovary persistent with fertile part in fruit, without abscission lines at juncture between hypanthium and fertile part of ovary. Fruit: cylindric-ovoid, +- angled to nearly cylindric, walls generally thin, distended by seeds, tip gradually attenuate into a slender sterile portion (0.4)1.5--18 cm, occasionally persistent for > 1 year, sessile. Seed: in 2 rows per chamber, elongate-ovoid, cylindric to oblong-ellipsoid, pitted or coarsely papillate, giving a shaggy appearance.
Species In Genus: 4 species: California to Washington & southwestern Canada, Nevada to Colorado (especially CA-FP). Etymology: (Leaves similar to Leontodon taraxacoides) Note: Incl in Camissonia in TJM (1993).
eFlora Treatment Author: Warren L. Wagner & Peter C. Hoch, family description, key to genera; treatment of genera by Warren L. Wagner
Jepson Online Interchange
Key to TaraxiaPrevious taxon: Oenothera xylocarpa
Next taxon: Taraxia ovata
Citation for this treatment: Warren L. Wagner & Peter C. Hoch, family description, key to genera; treatment of genera by Warren L. Wagner 2016. Taraxia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=69313, accessed on July 28, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 28, 2016.