Oxalis grandis


Bull. Torrey Bot. Club 21: 475. 1894.

Common names: Great yellow wood-sorrel
Basionym: Oxalis recurva Trelease Mem. Boston Soc. Nat. Hist. 4: 89. 1888
Synonyms: Xanthoxalis grandis (Small) Small
Treatment appears in FNA Volume 12. Treatment on page 145. Mentioned on page 138, 141.

Herbs perennial, caulescent, rhizomes present, without tubers or tuberlike thickenings, stolons absent, bulbs absent. Aerial stems 1(–3) from base, erect, (10–)25–60(–100) cm, herbaceous, glabrate to sparsely or densely pilose or villous, hairs ± straight, spreading, septate and nonseptate. Leaves cauline, mostly on distal 1/2 of stem; stipules apparently absent; petiole 5–7.5 cm, hairs septate and nonseptate; leaflets 3, green, obcordate, 5–25(–30) mm, lobed 1/5 length, lobes apically usually rounded, rarely ± truncate, margins green or brownish purple, ciliate, surfaces glabrous, oxalate deposits absent. Inflorescences regular, irregular, or umbelliform cymes, 1–4(–8)-flowered; peduncles 7–12 cm. Flowers tristylous, above level of leaves; sepal apices without tubercles; petals yellow, with or without faint red lines proximally, 10–14 mm. Capsules ovoid to ovoid-oblong, 6–10 mm, sparsely puberulent. Seeds brown, transverse ridges brown. 2n = 28.

Phenology: Flowering May–Aug.
Habitat: Sandy woods, alluvial soils.
Elevation: 100–1100 m.


V12 865-distribution-map.jpg

Ala., D.C., Ga., Ind., Ky., Md., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va.


Selected References


Lower Taxa