The World Flora Online

Perennials, 5-15(-40) cm tall, acaulescent, sparsely pubescent; bulb with white fleshy contractile root and a slender vertical stem rising to soil surface; underground stem and soil surface crown bearing numerous small bulbils and scales. Petiole 3-10 cm, erect to spreading; leaflet blades obcordate, 0.8-2 × 1.2-3.2 cm, slightly succulent, bright green often with dark purple spots, glabrous, apex deeply emarginate. Umbellate cymes with 3-20 flowers; peduncle 2 × as long as petioles. Flowers 2-3 cm across, nodding. Sepals lanceolate, 2.5-4 × ca. 1 mm, apex with a pair of orange calli. Petals deep golden yellow, obovate. Capsule long terete, pubescent, very rarely formed. Fl. Apr-Sep.

Perennial 12—24 cm tall. Stem underground, bulbiferous. Leaflets 5—15 mm long, 10 - 30 mm broad, often mottled purplish red; margin and lower surface pilose. Petiole up to 25 cm long. Scapes 1—5, up to 17 cm long, slender. Flowers 2—12, subumbellate. Sepals 5—7 mm long, lanceolate, tip with a reddish brown callus. Petals 15 20 mm long, yellow. Filament glabrous. Fruiting rare.

Root: type fibrous. Stem: type bulbose/rhizomatose. Leaf: disposition spiralled/clustered; leaflet persistent; stipule present; apex parted/divided; petiole glabrous; foliar rachis absent; surface adaxial glabrate; surface abaxial glabrate; leaflet median wide obovate/very wide obovate. Inflorescence: type umbelliform; peduncle glabrous. Flower: pedicel pilose; sepal pilose; callosity present; corolla yellow; stigma papillose; ovule more than 3. Fruit: locule glabrous. Raiz: tipo fibrosa(s). Tallo: tipo bulboso(s)/rizomatoso(s). Hoja: disposición espiralada(s)/agrupada(s); foliolo(s) persistente(s); estípula(s) presente(s); ápice(s) partido(s)/dividido(s); pecíolo(s) glabro(s); raquis foliar ausente(s); superficie(s) adaxial glabra(s); superficie(s) abaxial glabra(s); foliolo(s) mediano(s) anchamente obovado(s)/muy anchamente obovado(s). Inflorescencia: tipo umbeliforme(s); pedúnculo(s) glabro(s). Flor: pedicelo(s) piloso(s); sépala(s) pilosa(s); callosidad(es) presente(s); corola amarilla; estigma(s) papiloso(s); óvulo(s) más que 3. Fruto: lóculo(s) glabro(s). Raiz: tipo fibrosa(s). Caule: tipo bulboso(s)/rizomatoso(s). Folha: disposição espiralada(s)/agrupada(s); folíolo(s) persistente(s); estípula(s) presente(s); ápice(s) partido(s)/dividido(s); pecíolo(s) glabro(s); raque foliar ausente(s); superfície(s) adaxial glabra(s); superfície(s) abaxial glabra(s); folíolo(s) mediano(s) largamente obovado(s)/muito largamente obovado(s). Inflorescência: tipo umbeliforme(s); pedúnculo(s) glabro(s). Flor: pedicelo(s) piloso(s); sépala(s) pilosa(s); calosidade(s) presente(s); corola amarela; estigma(s) papiloso(s); óvulo(s) mais de 3. Fruto: lóculo(s) glabro(s). Raiz: tipo fibrosa(s). Tallo: tipo bulboso(s)/rizomatoso(s). Hoja: disposición espiralada(s)/agrupada(s); foliolo(s) persistente(s); estípula(s) presente(s); ápice(s) partido(s)/dividido(s); pecíolo(s) glabro(s); raquis foliar ausente(s); superficie(s) adaxial glabra(s); superficie(s) abaxial glabra(s); foliolo(s) mediano(s) anchamente obovado(s)/muy anchamente obovado(s). Inflorescencia: tipo umbeliforme(s); pedúnculo(s) glabro(s). Flor: pedicelo(s) piloso(s); sépala(s) pilosa(s); callosidad(es) presente(s); corola amarilla; estigma(s) papiloso(s); óvulo(s) más que 3. Fruto: lóculo(s) glabro(s). Raiz: tipo fibrosa(s). Caule: tipo bulboso(s)/rizomatoso(s). Folha: disposição espiralada(s)/agrupada(s); folíolo(s) persistente(s); estípula(s) presente(s); ápice(s) partido(s)/dividido(s); pecíolo(s) glabro(s); raque foliar ausente(s); superfície(s) adaxial glabra(s); superfície(s) abaxial glabra(s); folíolo(s) mediano(s) largamente obovado(s)/muito largamente obovado(s). Inflorescência: tipo umbeliforme(s); pedúnculo(s) glabro(s). Flor: pedicelo(s) piloso(s); sépala(s) pilosa(s); calosidade(s) presente(s); corola amarela; estigma(s) papiloso(s); óvulo(s) mais de 3. Fruto: lóculo(s) glabro(s).

Namaqualand to E Cape. Namibia through Namaqualand to E Cape. Namibia through Namaqualand to E Cape.

Robust acaulescent or caulescent geophyte, up to 300 mm tall. Bulb tunics soft, brown. Leaves usually basal, suberect, often long-petiolate, leaflets 3, cuneate-obcordate, usually glabrous above, pubescent beneath. Flowers 3-20 per peduncle, yellow. Acaulescent geophyte. Leaves usually basal, trifoliolate, leaflets cuneate-obcordate, usually glabrous above, pubescent beneath. Flowers 3-20 per peduncle, yellow. Acaulescent geophyte. Leaves usually basal, trifoliolate, leaflets cuneate-obcordate, usually glabrous above, pubescent beneath. Flowers 3-20 per peduncle, yellow.

Widespread and common. Widespread and common, 50-500 m. Widespread and common, 50-500 m.

SELECTED REFERENCES Galil, J. 1968. Vegetative dispersal in Oxalis cernua. Amer. J. Bot. 55: 787–792. Ornduff, R. 1986. The origin of weediness in Oxalis pes-caprae. Amer. J. Bot. 73: 779–780. Ornduff, R. 1987. Reproductive systems and chromosome races of Oxalis pes-caprae L. and their bearing on the genesis of a noxious weed. Ann. Missouri Bot. Gard. 74: 79–84. Putz, N. 1994. Vegetative spreading of Oxalis pes-caprae (Oxalidaceae). Pl. Syst. Evol. 191: 57–67.

Herbs perennial, acaulous, rhizomes present , stolons absent, bulb usually solitary, sometimes with bulblets at base; bulb scales not observed. Leaves basal, ; petiole 3–12 cm; leaflets 3, green, rarely mottled with purplish red spots, angular-obcordate, (5–)7–20 mm, lobed 1/4–2/5 length, abaxial surface villous, adaxial surface glabrous, oxalate deposits absent. Inflorescences umbelliform cymes, 2–12(–20)-flowered; scapes , 15–30 cm, sparsely villous to pilose. Flowers tristylous in diploids and tetraploids, consistently short-styled in pentaploids; sepal apices with 2 orange tubercles; petals deep golden yellow, 15–20 mm. Capsules not seen. 2n = 14, 28, 35.