Yellow Wood Sorrel / Sour Grass - Cooperative Extension: Cranberries

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Yellow Wood Sorrel / Sour Grass

A flowering Yellow wood sorrel plant with a U.S. postage stamp for scale purposes.Family: Oxalidaceae (Wood Sorrel Family)

Genus: Oxalis | Species: europaea

Description: Low-spreading plant with clover-like, sour-tasting leaves and one to several small (1/2″) yellow flowers possessing 5 petals. The leaves are quite characteristic in that they are palmately divided into three heart-shaped leaflets that close at dusk and open in the morning. Each leaflet is 1/2-3/4″ wide. The plants can reach heights of 6-15 inches. (The leaves may be used in salads, but sparingly due to the oxalic acid content.) [perennial]

Habitat: Waste places, roadsides, fields;

In Bloom: May – October

Flowers and leaves of a yellow wood sorrel plant next to a U.S. postage stamp for scale purposes.

Maine Cranberry Weeds

Cooperative Extension: Cranberries 17 Godfrey Drive Orono, Maine 04469 Tel: 207.581.2967 Fax: [email protected]
  • Home
  • Grower Services
  • How to Grow Cranberries
  • Highbush Cranberry (not a true cranberry)
  • What’s New?
  • Ways to Use Cranberries
  • What’s in a Cranberry?
  • Cranberry Photos
  • Educator Resources
  • Cranberry Facts and History
  • Publications
  • Contact Us
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