Roepera angustifolia (H.Eichler) Beier & Thulin

Scrambling Twinleaf

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

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: rare (r)

Weak ascending perennial subshrub 30–60 cm high; stems slender, sometimes scrambling over taller plants and reaching 150 cm in length. Leaves 15–40 mm long, green; leaflets articulate at base, linear to narrow oblong-elliptic, 10–25 mm long, 2–3(–4) mm wide, fleshy, apex acute; common petiole narrow. Sepals 4, ovate-lanceolate, 3–5 mm long, deflexed or spreading in fruit; petals 4, narrow-obovate to elliptic, 4–8 mm long, apex rounded, pale yellow; stamens 8, filaments subulate, lacking wings. Fruiting pedicels 8–25 mm long; fruit a 4-angled loculicidal capsule, obconical, 6–9 mm long, drooping, truncate at apex with a short point; seeds 1 or 2 per cell. Flowers mostly Jun.–Feb.

LoM, MuM, MSB, RobP. Also WA, SA, NSW. In Victoria, confined to the far north-west where occasional in mallee scrubland and herbfield, mainly on calcareous soils.

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 angustifolium H.Eichler).
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 angustifolia in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Roepera angustifolia in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Murray Scroll Belt present native
Robinvale Plains present native