Oxalis debilis var. corymbosa (DC.) Lourteig

Pink Shamrock

in Woodson et al., Ann. Missouri Bot. Gard. 67: 840 (1980) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Herb with stems not evident; bulbs globose, 1–3 cm long, tunics pale brown, vertically ribbed, ciliate with long hairs; bulbils formed from old bulbs, sessile. Leaves basal, 3-foliolate; leaflets subsessile, obcordate, 10–40 mm long, 10–50 mm wide, narrowly notched, green, glabrous above, sparsely pubescent and finely punctate with raised orange calli below, margins ciliate, sinus narrow, to c. one-fifth of leaflet length, lobes with rounded apices to c. 12 mm apart; petioles 5–20 cm long, sparsely hairy; stipules conspicuous, long and narrow, tapering into petioles. Inflorescences basal, 8–15-flowered; peduncles longer than leaves, sparsely hairy; pedicels 0.5–2 cm long, hairy. Sepals lanceolate, 5–7 mm long, sparsely hairy, green with 2(–4) orange-brown apical calli; petals 12–18 mm long, pink. Capsule not developed in Australia. Flowers Nov.-Apr.

*EGL, *GipP, *Gold, *HSF, *VVP. Naturalised in all States. Native to South America.

In Victoria, Oxalis debilis var. corymbosa appears to be an uncommon weed, with the majority of specimens collected in or near the Royal Botanic Gardens in Melbourne, with a single collection from Sunshine (western suburb of Melbourne), and an isolated collection from Orbost in eastern Victoria.

Source: Conn, B.J.; Jeanes, J.A.; Richards, P.G. (1999). Oxalidaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-07-24
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Oxalidales
family Oxalidaceae
genus Oxalis
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Oxalis debilis var. corymbosa in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Oxalis debilis var. corymbosa in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present naturalised
Gippsland Plain present naturalised
Goldfields present naturalised
East Gippsland Lowlands present naturalised
Highlands-Southern Fall present naturalised

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales
Australian Capital Territory