Oxalis corniculata L.

Family: Oxalidaceae

Pertinent Synonyms & Notes (particularly those used in California; go to GRIN for other synonyms)

Xanthoxalis corniculata (L.) Small; Oxalis repens Thunb.

Pertinent Common Names (particularly those used in California; go to GRIN for other common names)

creeping woodsorrel

Primary Disseminule Type


Description (diagnostics are in brown)

Fruit a cylindrical capsule with many seeds that are ejected when mature.

Seed obovate in outline, compressed, 1–1.5 mm long x 0.7–0.9 mm wide x ca. 0.4 mm thick. Surface amber to dark brown, dull to waxy-looking (rarely still covered with the whitish aril that serves to eject the seed from the fruit and usually remains with the fruit), with 6–9 broad, wavy, irregular (sometimes broken) transverse ridges on each flat side, and a narrow furrow that extends from the pointed hilum to the rounded apex on one or both lateral margins.

Hilum basal, pointed, unremarkable.

Risk Assessment (codes in yellow or red indicate cause for concern; assessments are current as of mid-2011; click AUQP, NZBORIC, or NZBPI for access to the most recent versions of these databases and possible assessment changes)