Plants of South Eastern New South Wales
Oxalis articulata
Sourgrass
Oxalidaceae
Garden escape. Gardens, roadsides and other disturbed areas. Mainly Canberra. Occasionally elsewhere.
Introduced perennial herb with the stem reduced, appearing absent. Rhizome woody, covered with old leaf bases, to about 2.5 cm diameter. Bulbs and bulbils absent. Flower stalks sparsely hairy, slightly longer than the leaves. Leaves basal, crowded at the top of the rhizome, on sparsely hairy leaf stalks to 30 cm long in large plants. Leaves compound, with 3 bilobed leaflets 0.9–4 cm long, 10–28 mm wide, green, sparsely hairy, margins fringed, the lobe tips rounded and 8–16 mm apart. Stipules membranous, tapering into the leaf stalks. Flowers pink, mauve, white, or purple, with 5 petals each 10–15 mm long. Flower clusters 1- to at least 30-flowered. Flowers most of the year. Seed cases not developed in Australia.
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Oxalis~articulata (accessed 29 January, 2021)
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