Oxalis intermedia

A. Richard

Hist. Phys. Cuba, Pl. Vasc., 315. 1841.

Common names: West Indian wood-sorrel
Synonyms: Ionoxalis intermedia A. St.-Hilaire
Treatment appears in FNA Volume 12. Treatment on page 151. Mentioned on page 135.
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Herbs perennial, acaulous, rhizomes absent, stolons often present, numerous, slender, with bulblets at tips, bulbs usually clustered, sometimes solitary; bulb scales (3–)5–7-nerved. Leaves basal, rarely absent at flowering; petiole 10–22 cm; leaflets 3, green, obtriangular to broadly obtriangular, 20–50 mm, lobed 1/5–1/3 length, lobes apically truncate, surfaces glabrous, oxalate deposits absent. Inflorescences umbelliform cymes, 3–12(–18)-flowered; scapes 7–30 cm, glabrous or sparsely hairy. Flowers semihomostylous; sepal apices with 2 orange tubercles; petals usually lavender to purple, less commonly pink or white, 8–12 mm. Capsules ellipsoid, 3–8 mm, glabrous.

Phenology: Flowering Apr–Sep.
Habitat: Gardens, fields, orchards, roadsides, moist waste areas, fencerows.
Elevation: 0–100 m.


V12 895-distribution-map.jpg

Introduced; Fla., La., Tex., West Indies, introduced also in Mexico (Chiapas, San Luis Potosí, Veracruz).


Oxalis intermedia is recognized by a combination of its large, obtriangular leaflets; numerous, small flowers; and usually clustered bulbs. It was collected in California in 1934 and Massachusetts in 1940 but does not appear to have become naturalized in either state. Plants in the flora area are usually without fertile fruit.

Selected References


Lower Taxa

... more about "Oxalis intermedia"
Guy L. Nesom +
A. Richard +
West Indian wood-sorrel +
Fla. +, La. +, Tex. +, West Indies +, introduced also in Mexico (Chiapas +, San Luis Potosí +  and Veracruz). +
0–100 m. +
Gardens, fields, orchards, roadsides, moist waste areas, fencerows. +
Flowering Apr–Sep. +
Hist. Phys. Cuba, Pl. Vasc., +
Introduced +
Ionoxalis intermedia +
Oxalis intermedia +
species +