Roepera ovata (Ewart & Jean White) Beier & Thulin

Dwarf Twinleaf

Pl. Syst. Evol. 240: 32 (2003)

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Erect or ascending annual herb to c. 25 cm high. Leaves 5–15 mm long, green; leaflets continuous with petiole, linear to narrow-oblong, 4–10 mm long, 1–5 mm wide, spreading, apex usually slightly emarginate. Sepals 4, ovate-lanceolate, 1–2 mm long, spreading in fruit; petals 4, obovate to oblanceolate, 1–1.5 mm long, apex acute, white; stamens 8, filaments slightly flattened near base but not winged. Fruiting pedicels 2–3 mm long; fruit a 4-angled loculicidal capsule, ellipsoid, 6–8 mm long, drooping, rounded at apex with a short point; seeds usually 2 per cell. Flowers mostly Jul.–Oct.

MuM, MSB, RobP. Also WA, NT, SA, NSW. Uncommon in Victoria and confined to the north-west, usually growing in mallee and woodland communities on calcareous sandy loams.

Source: Jeanes, J.A. (1999). Zygophyllaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne (as Zygophyllum ovatum Ewart & Jean White).
Updated by: Neville Walsh, 2019-06-06
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Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Roepera ovata in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Roepera ovata in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present native
Murray Scroll Belt present native
Robinvale Plains present native