Oxalis laxa

Herbs annual, caulescent, sometimes densely cespitose, rhizomes and stolons absent, bulbs absent. Aerial stems 1–5 from base, erect, 0.5–7 cm, usually herbaceous, sometimes becoming ± woody proximally, hirtellous to villous-hirtellous. Leaves cauline; stipules rudimentary; petiole 1.5–6 cm; leaflets 3, green, obcordate, 5–12 mm, lobed 1/5 length, lobes apically convex, surfaces glabrous, oxalate deposits absent. Inflorescences racemes, 6–14-flowered; peduncles 3–15 cm. Flowers heterostylous; sepal apices without tubercles; petals yellow, 6–12 mm. Capsules ovoid to spheric, 3–5 mm, puberulent.

Phenology: Flowering Apr–Jun.
Habitat: Disturbed sites, riparian woodlands, riverbanks, gravelly beaches, rock crevices, foothill woodlands.
Elevation: 10–800 m.

Introduced; Calif., South America (Chile).

Discussion

Oxalis laxa is widespread in California in the eastern part of the Central Valley and along the central coast.

Selected References

None.

Lower Taxa