E-Flora BC: Electronic Atlas of the Flora of British Columbia

Oxalis corniculata L.
yellow oxalis (creeping woodsorrel)
Oxalidaceae (Wood-Sorrel family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #8186)

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Distribution of Oxalis corniculata
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Species Information

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Perennial herb from a slender taproot; stems decumbent to ascending, simple, many, rough hairy, trailing ones freely rooting, herbage brownish to reddish-purple, 5-10 cm tall/long.
Basal leaves few, reduced; stem leaves alternate, long stalked, clover-like, the blades 1-4 cm long, the leaflets broadly heart-shaped, folded towards each other; stipules linear to oblanceolate, often brownish, 1.5-4 mm long.
Inflorescence 2- to 5-flowered on stalks 2-10 cm long; petals yellow, 4-8 mm long, entire; sepals 2-4.5 mm long.
Capsules, oblong, 1.5-2.5 cm long, greyish rough-hairy; seeds brown, cross-wrinkled.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic fields and waste places in the lowland zone; frequent on S Vancouver Island, the Gulf Islands and adjacent coast; introduced from Eurasia.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Acetosella corniculata (L.) Kuntze
Oxalis corniculata var. atropurpurea Planch.
Oxalis corniculata var. langloisii (Small) Wieg.
Oxalis corniculata var. lupulina (R. Knuth) Zucc.
Oxalis corniculata var. macrophylla Arsene ex R. Knuth
Oxalis corniculata var. minor Laing
Oxalis corniculata var. reptans Laing
Oxalis corniculata var. villosa (Bieb.) Hohen.
Oxalis corniculata var. viscidula Wieg.
Oxalis langloisii (Small) Fedde
Oxalis pusilla Salisb.
Oxalis repens
Oxalis villosa Bieb.
Xanthoxalis corniculata (L.) Small
Xanthoxalis corniculata var. atropurpurea (Planch.) Moldenke
Xanthoxalis langloisii Small
Xanthoxalis repens (Thunb.) Moldenke

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References