Muehlenbeckia rhyticarya F.Muell.

Wrinkle-nut Lignum

Fragm. 5: 92 (1865) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: rare (r)

Glaucous, sprawling to weakly erect subshrub with stems to c. 2 m long. Leaves broadly ovate, reniform or almost orbicular, 2.5–8 cm long and wide, thickish, apex obtuse to rounded, sometimes shallowly emarginate, base cordate, margins somewhat undulate; petiole c. 1–5 cm long. Flowers clustered in interrupted, terminal or near-terminal, spike-like or paniculate inflorescences mostly 3–14 cm long, pedicels shortly exceeding the subtending bract; perianth segments 2–4 mm long, free almost to base, yellow-green, female flowers elongating to c. 6 mm long in fruit, normally remaining membranous. Nut ovoid, 4–6 mm long, trigonous, prominently transversely wrinkled, dull black. Flowers mostly Sep.–Jan.

EGL, EGU, GipP, HSF, VAlp. Also Qld, NSW. In Victoria known from a few dryish rocky, slightly elevated sites in the Glenaladale, Bruthen-Ensay, and Buchan areas, usually near watercourses but away from riparian vegetation.

Source: Walsh, N.G. (1996). Polygonaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2019-02-13
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Caryophyllanae
family Polygonaceae
Higher taxa


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

State distribution

Distribution map
Northern Territory
New South Wales
Australian Capital Territory