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dwarf wood-sorrel

Habit 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.



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.


racemes, 6–14-flowered;

peduncles 3–15 cm.



sepal apices without tubercles;

petals yellow, 6–12 mm.


ovoid to spheric, 3–5 mm, puberulent.

Oxalis laxa

Phenology Flowering Apr–Jun.
Habitat Disturbed sites, riparian woodlands, riverbanks, gravelly beaches, rock crevices, foothill woodlands.
Elevation 10–800 m. (0–2600 ft.)
from FNA
CA; South America (Chile) [Introduced in North America]

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

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 12, p. 145.
Parent taxa Oxalidaceae > Oxalis
Sibling taxa
O. albicans, O. articulata, O. bowiei, O. brasiliensis, O. caerulea, O. californica, O. colorea, O. corniculata, O. debilis, O. decaphylla, O. dichondrifolia, O. dillenii, O. drummondii, O. florida, O. frutescens, O. grandis, O. hirta, O. hispidula, O. illinoensis, O. incarnata, O. intermedia, O. latifolia, O. macrantha, O. metcalfei, O. montana, O. oregana, O. pes-caprae, O. pilosa, O. purpurea, O. stricta, O. suksdorfii, O. texana, O. triangularis, O. trilliifolia, O. violacea
Synonyms O. corniculata var. sericea, O. micrantha, O. radicosa, O. simulans
Name authority Hooker & Arnott: Bot. Beechey Voy., 13. (1830)
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