Oxalis debilis Kunth

Pink woodsorrel (en), Oxalis chétif (fr), Oxalide chétive (fr)

Species

Angiosperms > Oxalidales > Oxalidaceae > Oxalis

Characteristics

Perennial herb with stems not evident; root vertical, thick with fibrous branches; bulb globose, 1–3 cm long, tunics pale brown, vertically ribbed, ciliate with long hairs; bulbils formed from old bulbs, sessile. Indumentum of simple eglandular hairs. Stipules to 13 mm long, 2 mm wide, conspicuous, long and narrow, tapering into petioles. Leaves basal, palmately trifoliolate; petiole 5–20 cm long, sparsely hairy; leaflets subsessile, obcordate, 10–40 mm long, 10–50 mm wide, narrowly notched (sinus ⅙–⅕ length of leaflet), green, glabrous above, sparsely pubescent and finely punctate with raised orange calli below, margins ciliate, lobes with rounded apices to c. 12 mm apart. Inflorescences basal, 8–15-flowered; peduncles longer than leaves, sparsely hairy; pedicels 0.5–2 cm long, hairy. Bracts situated at base of pedicels, ovate to rhomboid, 2–5 mm long, with calli (usually small). Flowers tristylous. Sepals lanceolate, 5–7 mm long, sparsely hairy, green with 2 (–4) prominent, orange-brown apical calli. Petals oblong-obovate, 10–20 mm long, pink, glabrous. Stamens at 2 levels; filaments glabrous. Ovary glabrous. Styles densely and patently hirsute. Capsules not developed in Australia.
More
Perennial acaulous herb with thick, fleshy, glassy white, contractile root below the main bulb which is surrounded by numerous small bulbils; tunic brown; scales 3-nerved. Lvs 3-foliolate. Petiole usually 7-20 cm long, glabrate or with scattered long hairs; stipular wing broad, membranous, hairy. Petiolule c. 1 mm long, hairy. Lamina of leaflets equal or nearly so, 10-35 × 12-48 mm, broadly obcordate, 2-lobed, rounded, with rather narrow sinus, glabrous or nearly so above, hairy beneath, finely punctate with raised orange calli beneath, especially round the margin. Infl. to 35 cm long, cymose, 3-7-or 10-18-flowered, with long curly hairs; pedicels ± deflexed, very variable in length. Bracts at base of pedicels, 2-3 mm long, with calli present but these often small. Sepals 4-5 mm long, ± elliptic, slightly hairy; calli 2-(4), prominent, orange, apical. Petals 1.5-2 cm long, oblong-obovate, pink to rose, glabrous. Stamens at 2 levels; filaments patently hirsute, dilated towards base, the longer 5-6 mm long. Styles either slightly < the shorter stamens or intermediate between stamen whorls, densely and patently hirsute. Capsule not seen.
Herbs perennial, acaulous, rhizomes and stolons absent, bulblets clustered; bulb scales 3-nerved. Leaves basal; petiole 10–25 cm; leaflets 3, green to yellowish green, rounded-obcordate, 17–40(–50) mm, lobed 1/6–1/5 length, <lobes apically convex>, adaxial surface hirsute, adaxial surface glabrous, oxalate deposits in dots at least around distal margins, often evenly over surface. Inflorescences irregular cymes, (3–)8–14(–28)-flowered; scapes 15–28 cm, moderately villous to glabrate. Flowers mostly homostylous, infrequently tristylous; sepal apices with 2 orange tubercles; petals violet to lavender or rose purple, 10–16(–20) mm. Capsules not observed. 2n = 14, 28, rarely 35.
A herb. It keeps growing from year to year. The flowers are red or purple.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread autochory
Mature width (meter) -
Mature height (meter) 0.15 - 0.18
Root system fibrous-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Moist, shady places at elevations of 45-1,200 metres in Jamaica. A weed of disturbed ground and gardens in southwest Europe.
More
A weed of gardens and parks, roadside and other disturbed sites, and sometimes an environmental weed.
It is a subtropical plant. In Argentina it grows below 600 m above sea level. It grows in wetlands.
Moist, shady places at elevations of 45-1,200 metres in Jamaica.
Light 7-9
Soil humidity 1-6
Soil texture 1-6
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 7-11

Usage

It is cooked as a vegetable. It can be fried or boiled. It is used in soups.
Uses environmental use food medicinal poison
Edible bulbs flowers leaves roots tubers
Therapeutic use Cancer (unspecified), Medicine (unspecified), Debility (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 14 - 60
Germination temperacture (C°) 12 - 20
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Oxalis debilis habit picture by Ludovic Descolas (cc-by-sa)
Oxalis debilis habit picture by charlotte lambert (cc-by-sa)
Oxalis debilis habit picture by Judicaël CASTAGNET (cc-by-sa)

Leaf

Oxalis debilis leaf picture by Elise Noblanc (cc-by-sa)
Oxalis debilis leaf picture by kichler j (cc-by-sa)
Oxalis debilis leaf picture by Laurent Leguay (cc-by-sa)

Flower

Oxalis debilis flower picture by Kevin Le Falher (cc-by-sa)
Oxalis debilis flower picture by jean-paul Jacquond (cc-by-sa)
Oxalis debilis flower picture by Elise Noblanc (cc-by-sa)

Distribution

Oxalis debilis world distribution map, present in Argentina, American Samoa, Australia, Bonaire, Sint Eustatius and Saba, Bangladesh, Bolivia (Plurinational State of), Brazil, Barbados, Bhutan, Switzerland, China, Cameroon, Colombia, Cabo Verde, Costa Rica, Cuba, Dominica, Algeria, Ecuador, Spain, Fiji, France, United Kingdom of Great Britain and Northern Ireland, Guadeloupe, Equatorial Guinea, Greece, Grenada, Guatemala, Guyana, Honduras, Indonesia, India, Jamaica, Japan, Saint Lucia, Sri Lanka, Morocco, Montserrat, Martinique, Mauritius, Malaysia, Nicaragua, Nepal, New Zealand, Pakistan, Panama, Peru, Philippines, Puerto Rico, Korea (Democratic People's Republic of), Portugal, Paraguay, Réunion, Singapore, El Salvador, Sao Tome and Principe, Slovakia, Trinidad and Tobago, Taiwan, Province of China, Uruguay, United States of America, Venezuela (Bolivarian Republic of), and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:374833-1
WFO ID wfo-0000387473
COL ID 6TF7H
BDTFX ID 47131
INPN ID 111879
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Oxalis bulbifera Oxalis pynaertii Oxalis umbrosa Oxalis corymbosa Oxalis martiana Acetosella grandifolia Oxalis gemella Oxalis grandifolia Sassia debilis Acetosella martiana Oxalis bipunctata Oxalis multibulbosa Ionoxalis canaminensis Oxalis huilensis Ionoxalis martiana Oxalis urbica Oxalis macrophylla Acetosella debilis Oxalis debilis subsp. corymbosa Oxalis debilis var. corymbosa Oxalis debilis var. debilis Oxalis caripensis Oxalis debilis