Oenothera triloba

Oenothera triloba, with common names stemless evening primrose and sessile evening primrose[1] is a flowering plant in the primrose family. It is native to North America, where it is primarily found in northern Mexico and in the south-central United States.[2] It is found in dry, open areas such as glades, prairies, and sometimes even lawns. It appears to respond positively to soil disturbance.[3][4]

Oenothera triloba
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Onagraceae
Genus: Oenothera
Species:
O. triloba
Binomial name
Oenothera triloba

It is a winter annual that produces large yellow flowers in the spring. The flowers open near sunset.[3]

Uses

Among the Zuni people, the plant is used as an ingredient of "schumaakwe cakes" and used externally for rheumatism and swelling.[5] They also grind the roots and use them as food.[6]

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References
  1. USDA GRIN Taxonomy, retrieved 15 June 2016
  2. "Oenothera triloba". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014. Retrieved 17 January 2017.
  3. Shinners and Mahler's Illustrated Flora of North Central Texas Online
  4. "Flora of the Southern and Mid-Atlantic States".
  5. Matilda Coxe Stevenson (1915). Ethnobotany of the Zuni Indians. SI-BAE Annual Report #30. p. 55.
  6. Albert B. Reagan (1929). "Plants used by the White Mountain Apache Indians of Arizona". Wisconsin Archeologist. 8: 143–161.


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