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Oxalis dillenii Jacq.
Slender yellow woodsorrel
Synonym(s): Oxalis brittoniae, Oxalis corniculata var. dillenii, Oxalis dillenii ssp. filipes, Oxalis dillenii var. radicans, Oxalis filipes, Oxalis florida, Oxalis florida ssp. prostrata, Oxalis florida var. filipes, Oxalis prostrata, Oxalis rupestris, Oxalis stricta, Xanthoxalis brittoniae, Xanthoxalis dillenii, Xanthoxalis filipes, Xanthoxalis florida
USDA Symbol: OXDI2
USDA Native Status: L48 (N), CAN (I)
The name Oxalis is derived from a Greek word for sour, referring to the sour taste of the leaves. This plant grows to 15 inches tall and develops a deep tap root. Stems are usually erect. Leaves are palmately divided into 3 heart-shaped leaflets, green to yellow-green, which fold in the evening or when it is cloudy. The yellow flowers are 1/2–1 inch across, with 5 sepals, 5 petals, 10 stamens, and 1 pistil. There are 1 to several blossoms on a slender stem borne in the leaf axils.
Bloom InformationBloom Color: Yellow
Bloom Time: May , Jun , Jul , Aug , Sep , Oct , Nov
, WY Canada: AB
, SK Native Habitat:
Fields, glades, prairies, disturbed areas, and roadsides.
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
Herbarium Specimen(s)NPSOT 0717
Collected Mar 13, 1994 in Comal County by Mary Beth WhiteNPSOT 0341
Collected May 26. 1987 in Bexar County by Harry Cliffe
Wildflower Center Seed BankLBJWC-0142
Collected 2007-07-19 in Travis County by Lady Bird Johnson Wildflower Center
Record Last Modified: 2009-11-12
Research By: DEW