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Oenothera deltoides  

No occurrences found

Family: Onagraceae
Antioch Dunes evening primrose, more...birdcage evening primrose, Piper's evening primrose
Oenothera deltoides image
Frankie Coburn
  • Field Guide
  • Resources
Jepson 2012, Kearney and Peebles 1969, McDougal 1973
Duration: Annual Nativity: Native Lifeform: Forb/Herb General: Herbaceous and usually low-growing, annuals to perennials, to 1 m tall, stems stout, decumbent or erect, surfaces spongy and peeling with curly to straight, glandular hairs, plants arising from a taproot. Leaves: Alternate, sessile, basal in a loose rosette, diamond-shaped or obovate to oblanceolate, 2-15 cm long, margins entire to pinnately lobed, sometimes lightly sinuate. Flowers: White fading pink with yellow throats, fragrant, large and showy, delicate, opening at dusk, with 4 open and spreading petals with small notches in the tips and rounded lobes, sepals 4, 8-30 mm long, reflexed or with free tips in reddish buds 0-1.2 mm long, hypanthium 20-40 mm long, flowers borne in distal axils with nodding buds, bracted with reduced leaves. Fruits: Loculicidal, cylindric capsules 20-80 mm long, generally curved, and twisted. Seeds obovate with smooth surfaces, 1.5-2 mm long, in 1 row per chamber. Ecology: Found from 1,000-4,000 ft (305-1219 m); flowering February-May. Distribution: Arizona, California, Nevada, Utah; Mexico. Notes: This species tends to be low-growing in Arizona but can get taller under favorable circumstances. A handy key for this species is the length of the tips of the sepals in bud, they are 1-5 mm long in Oenothera flava and less than or to 1 mm long in O. deltoides. Kearney and Peebles list 5 different varieties for this species, ecology and distribution data taken from McDougall. Ethnobotany: Specific uses for this species are unknown, but other species in the genus have uses; compound infusion of plants used as a wash for sore skin, and leaves boiled, fried and often eaten with greens. Synonyms: None Editor: LCrumbacher2012
Oenothera deltoides image
Frankie Coburn
Oenothera deltoides image
Frankie Coburn
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NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.