Prunus gracilis, called the Oklahoma plum, sour plum, and sand plum, is native to the south-central United States (eastern New Mexico, southeastern Colorado, Texas, Oklahoma, Kansas, southwestern Arkansas, northwestern Louisiana).
|Subgenus:||Prunus subg. Prunus|
|Section:||Prunus sect. Prunocerasus|
Prunus normalis Small
The specific epithet Gracilis refers to 'slender branches'. Prunus gracilis grows up to 6 ft (1.8 m) tall, has five-petaled leaves, and fruits ripen June–August. Its red fruits are considered poor for eating, but Native Americans dried them for consumption during winter. It grows in clusters and thickets. It is hermaphrodite and pollinated by insects.
It is found growing in fence rows, open woodlands, woodlands edge, forest openings, hillsides, slopes, sandy roadsides, upland thickets and waste places. It is normally found at 100–1,300 m (330–4,270 ft) above sea level.
- illustration published in Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 323.
- "Prunus gracilis". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 14 October 2015.
- Pollard, R.P.; Rhodes, L.; Maxted, N. (2016). "Prunus gracilis". IUCN Red List of Threatened Species. 2016. Retrieved 26 December 2017.old-form url
- "Prunus gracilis". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved December 30, 2014.
- Biota of North America Program 2014 county distribution map
- "Prunus gracilis Engelm. & Gray". Oklahoma Biological Survey, University of Oklahoma. Retrieved December 30, 2014.
- "Prunus gracilis". Lady Bird Johnson Wildflower Center. Retrieved December 30, 2014.
- "Oklahoma Plum, Sour Plum, Sand Plum". Texas A&M University. Retrieved December 30, 2014.
- Wright, William Franklin (1915). Native American species of Prunus. Washington, DC: United States Department of Agriculture. p. 58.
- photo of herbarium specimen at Missouri Botanical Garden, collected in Republic of Texas in 1844
- Media related to Prunus_gracilis at Wikimedia Commons
- Data related to Prunus gracilis at Wikispecies
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