Oenothera fruticosa

Oenothera fruticosa
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Myrtales
Family:	Onagraceae
Genus:	Oenothera
Species:	O. fruticosa
Binomial name
Oenothera fruticosa L.

Oenothera fruticosa, narrowleaf evening primrose^[1] or narrow-leaved sundrops, is a species of flowering plant in the evening primrose family.

It is native to much of eastern North America,^[2] where it is found in a variety of open habitats, including dry woodlands, rock outcrops and moist savannas.^[3]

It is an erect herbaceous perennial growing to 20–90 cm (8–35 in) tall, with alternative, simple, entire or slightly toothed leaves. The saucer- or cup-shaped yellow flowers, 2.5–5 cm (1–2 in) in diameter, appear in late spring and summer.^[4] The fruit is a capsule that is strongly 4-angled or winged and shaped like a club.

Many varieties have been named, but the infraspecific taxonomy of this species is still in an unresolved state.

References

1. ↑ Oenothera fruticosa L., USDA PLANTS
2. ↑ "Floristic synthesis map" (PNG). Bonap.net. Retrieved 22 October 2016. 
3. ↑ "Floristic synthesis map" (PNG). Bonap.net. Retrieved 9 October 2015. 
4. ↑ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1-4053-3296-4. 

Further reading

• Moerman, Daniel E. (2010). "Oenothera fruticosa". Native American Food Plants: An Ethnobotanical Dictionary. Timber Press. p. 164. ISBN 978-1-60469-189-4. 
• Quattrocchi, Umberto (2012). "Oenothera fruticosa". CRC World Dictionary of Medicinal and Poisonous Plants: Common Names, Scientific Names, Eponyms, Synonyms, and Etymology. p. 2671. ISBN 978-1-4822-5064-0. 
• Britton, Nathaniel; Brown, Addison (1913). "Kneiffia lineàris". An Illustrated Flora of the Northern United States, Canada and the British Possessions: From Newfoundland to the Parallel of the Southern Boundary of Virginia, and from the Atlantic Ocean Westward to the 102d Meridian, Volume 2. p. 601.