Roepera crenata (F.Muell.) Beier & Thulin

Notched Twinleaf

Pl. Syst. Evol. 240: 30 (2003)

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Procumbent or ascending annual herb to c. 20 cm high; stems rather stout. Leaves 20–70 mm long, green; leaflets articulate at base, narrow-oblong to narrow-obovate, 10–35 mm long, 3–12 mm wide, apex crenate usually with 3 blunt teeth; common petiole distinctly winged. Sepals 4, ovate, 4–6 mm long, spreading or recurved in fruit; petals 4, obovate, 7–9 mm long, apex rounded to emarginate, bright yellow; stamens 8, filaments winged in lower part, wings fringed at apex. Fruiting pedicels 3–11 mm long; fruit a 4-angled loculicidal capsule, ovoid-oblong, 12–20 mm long, drooping, rounded at apex with a short point; seeds 3–8 per cell. Flowers mostly Aug.–Oct.

LoM, MuM, MSB, RobP, VRiv. Also NT, SA, NSW. In Victoria, confined to the north-west where rare. Occurring in tussock grassland and shrubland often on saline clay 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 crenatum F.Muell.).
Updated by: Neville Walsh, 2019-06-06
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Roepera crenata in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Roepera crenata in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Victorian Riverina present native
Murray Scroll Belt present native
Robinvale Plains present native