Oxalis petricola Dreyer, Roets & Oberl.

Species

Angiosperms > Oxalidales > Oxalidaceae > Oxalis

Characteristics

Geophyte up to 200 mm tall with branched stems. Bulb contorted narrow-ovoid to ovoid, tapering to the apex, 20-30 by 30-70 mm, usually producing a contractile root; tunics dark brown to black, glabrous, distinctly longitudinally ridged, irregularly splitting, gummy with soil and stone particles embedded. Rhizome white, up to 100 mm long, glabrous to sparsely minutely glandular hairy, with light brown alternating scales with sparse glandular hairs, sometimes enveloped along the most of length by bulb remains of multiple previous years; adventitious roots glandular-pilose. Above-ground stem glabrous, glaucous, maroon or green, fleshy, c. 2 mm diam. at base and rather brittle, with 1-3 light brown papery scales on basal part, branched; branches alternate, the lower arising from leaf scales and the upper from leaf axils. Leaves petiolate, trifoliolate, the lower widely spreading, alternate or occasionally in pseudo-whorls, the upper in apically congested pseudo-whorls of 3-7; petioles 35-60 mm long, glabrous, glaucous; leaflets 3, 6-13 by 6-13 mm with distinct 0.5 mm long reddish petiolules, broadly cuneate-obcordate to obcordate, lobes rounded at the apex, incised to at most 1/4 of length, abaxially and adaxially glabrous, adaxially green, abaxially maroon-green. Peduncles arising from apical pseudo-whorls, occasionally cauline, as long as to almost twice the length of petioles, 60-95 mm long, 2-6-flowered, green, glabrous. Bracts small, 2-3 mm long, linear, with 2 large linear orange calli merging at the apex. Pedicels slender, 8-22 mm long, sepals 5, 4-5.5 mm long, lanceolate, acute to acuminate, glabrous, ecallose, base green and tip pink. Corolla 12-16 mm long, white, with broad funnel-shaped yellow tube. Petals 5, 6-7 mm wide, glabrous, ecallose, abaxial border light point, sparsely to moderately hairy, lamina broadly rounded, claw 1/3 to 1/2 of petal length. Stamens 10 , in 3 whorls; 2 whorls per plant, lower whorl 2 mm long, middle whorl 4 mm long, longest whorl 7 mm long; filaments sparsely hairy; anthers oval, yellow. Ovary narrowly ovoid, 2 mm long, 5-loculed, yellow, glabrous; styles 5, separate, reciprocally herkogamous with two stamen whorls, short-whorled styles curving outwards between filaments, mid-and long-whorled styles erect, glabrous; stigmas green, fimbriate. Fruit and seed unknown.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2
Root system adventitious-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 14 - 60
Germination temperacture (C°) 12 - 20
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Oxalis petricola world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:77127260-1
WFO ID wfo-0001335451
COL ID 75GDL
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Oxalis petricola