Scleranthus biflorus (J.R.Forst. & G.Forst.) Hook.f.

Twin-flower Knawel

Fl. Nov.-Zel. 1: 74 (1852) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Dense, compact, cushion-like perennial with non-woody base; stems to 12 cm long, glabrous. Leaves (2–)4–10(–12) mm long, (0.3–)0.4–0.7 mm wide, keeled, incurved, glabrous; apex apiculate; margin very narrow and scarious, minutely denticulate to undulate. Inflorescence a pedunculate pair of sessile (rarely subsessile) flowers; peduncle (0.9–)2–10(–16) mm long in fruit, glabrous; bracts glabrous; pedicels absent or rarely up to 0.3 mm long. Sepals 4, triangular-ovate, 0.4–0.7 mm long, 0.3–0.6 mm wide, overlapping at base, margin scarious, midrib keeled; stamens 1, level with or exserted beyond the calyx, long persistent. Fruit not ribbed, veins obscure, (1.2–)1.5–2.0(–2.3) mm long, 0.7–1.1 mm wide Flowers Oct.–Feb.

Brid, EGL, EGU, GipP, Glep, HNF, HSF, MonT, OtP, VAlp, WPro. Also Qld, NSW, Tas. New Zealand. Grasslands and woodlands of tablelands and montane to alpine habitats, occasionally found near sea-level at lower latitudes.

Source: Cowley, K.J.; West, J.G. (1996). Scleranthus. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-02-16
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Distribution map


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Scleranthus biflorus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Scleranthus biflorus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Glenelg Plain present native
Bridgewater present native
Gippsland Plain present native
Otway Plain present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Wilsons Promontory present native
Highlands-Southern Fall present native
Highlands-Northern Fall present native
Monaro Tablelands present native
Victorian Alps present native

State distribution

Distribution map
New South Wales
Australian Capital Territory