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Oxalis stricta L.
Common Yellow Oxalis, Yellow Wood-sorrel, Upright Yellow Wood-sorrel, Yellow Woodsorrel
Oxalidaceae (Wood-Sorrel Family)
Synonym(s): Ceratoxalis coloradensis, Ceratoxalis cymosa, Oxalis bushii, Oxalis coloradensis, Oxalis cymosa, Oxalis europaea, Oxalis europaea var. bushii, Oxalis europaea var. rufa, Oxalis fontana, Oxalis fontana var. bushii, Oxalis interior, Oxalis rufa, Oxalis stricta var. decumbens, Oxalis stricta var. piletocarpa, Oxalis stricta var. rufa, Oxalis stricta var. villicaulis, Xanthoxalis bushii, Xanthoxalis coloradensis, Xanthoxalis cymosa, Xanthoxalis dillenii var. piletocarpa, Xanthoxalis interior, Xanthoxalis rufa, Xanthoxalis stricta, Xanthoxalis stricta var. piletocarpa
USDA Symbol: OXST
USDA Native Status: L48 (N), CAN (I)
A low spreading plant with clover-like, sour-tasting leaves and 1 to several yellow flowers.
With their clover-like leaves, the wood sorrels are easy to recognize. The sour taste of the leaves is distinctive and they may be used in salads, but sparingly, because of the oxalic acid content. The genus name comes from the Greek oxys ("sour"). This species is a cosmopolitan weed, perhaps originally native to North America. It is especially common as a garden weed. The very similar Slender Yellow Wood Sorrel (O. dillenii), has seed capsules on reflexed stalks. Large Yellow Wood Sorrel (O. grandis) has flowers to 1" (2.5 cm) wide and leaves often with purple edges; it is native and grows from Indiana east to Pennsylvania and south to Georgia and Louisiana.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Arrangement: Alternate
Fruit Type: Capsule
Size Notes: Stems erect to decumbent, up to about 3 feet long.
Bloom InformationBloom Color: Yellow
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct
DistributionUSA: AL , AR , AZ , CO , CT , DC , DE , FL , GA , IA , ID , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , NC , ND , NE , NH , NJ , NM , NY , OH , OK , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY
Canada: NB , NS , ON , PE
Native Distribution: Saskatchewan east to Newfoundland, south to Florida, west to Texas, and north to Minnesota; also in West.
Native Habitat: Prairie, Plains, Meadows, Pastures, Savannas, Woodlands' edge, Opening, Throughout
Growing ConditionsWater Use: Low
Light Requirement: Sun
Soil Moisture: Dry
Soil pH: Circumneutral (pH 6.8-7.2)
Soil Description: All soils
Conditions Comments: This low plant is extremely common and has wide distribution in Texas. Seeds out freely and is probably best used in wild areas.
BenefitUse Food: EDIBLE PARTS: Small amounts of leaves, flowers, seeds, tubers/roots eaten raw are not dangerous. Gather stems and leaves during early spring through fall. Tender stems and leaves can be steeped in hot water. Use liquid as a sour lemonade-type drink. For tea, use a handful of leaves per pint of water. Add to salads for a lemony taste. Cook with greens to enhance mild flavors. Remove stems if too stringy. Use flowers raw in salads or as cooked greens. Add young seed pods to salads or cook with the leaves and stems. Clean tubers and roots and eat raw or cooked with the greens, seeds, and flowers. (Poisonous Plants of N.C.)
Warning: POISONOUS PARTS: All parts. Low toxicity if ingested (no documented cases in humans). Symptoms in grazing animals, when eaten in large quantities, may cause trembling, cramps, and staggering as in grazing animals. Toxic Principle: Soluble oxalate.
Deer Resistant: High
Mr. Smarty Plants says
Edible Native Plants for a Small Austin Garden
March 15, 2010
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National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Lady Bird Johnson Wildflower Center - Austin, TX
Crosby Arboretum - Picayune, MS
Herbarium Specimen(s)NPSOT 0342 Collected May 26, 1987 in Bexar County by Harry Cliffe
BibliographyBibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
Bibref 328 - Wildflowers of Texas (2003) Ajilvsgi, Geyata.
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.
Search More Titles in Bibliography
Web ReferenceWebref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Oxalis stricta in USDA Plants
FNA: Find Oxalis stricta in the Flora of North America (if available)
Google: Search Google for Oxalis stricta
MetadataRecord Modified: 2023-02-21
Research By: NPC