Flora of North America species comparison

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Oxalis laxa

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.
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.

Oxalis laxa
Phenology Flowering Apr–Jun.
Habitat Disturbed sites, riparian woodlands, riverbanks, gravelly beaches, rock crevices, foothill woodlands.
Elevation 10–800 m. [30–2600 ft.]
Distribution
map from FNA
CA; South America (Chile) [Introduced in North America]
Discussion

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.)
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)
Source FNA vol. 12, p. 145. Treatment author: Guy L. Nesom.
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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