Common name: Pokolbin Leionema
Leionema lamprophyllum subsp. fractum S.A.J.Bell APNI* Description: Compact shrub to 1.5 m high; stems warty, densely pubescent with stellate and simple hairs, terete to ± angled when young.
Leaves ± rhomboid, 6–9 mm long, 3–5 mm wide, flat or convex when dry, apex rounded, margins crenate to dentate, sometimes erose, glabrous (midrib sometimes stellate), glossy above.
Flowers 2–4 in umbellate cymes in the axils of terminal leaves and bracts; pedicels minutely bracteolate in lower half. Calyx fleshy, lobes triangular, valvate. Petals 2.3–3.1 mm long, white, sometimes with pink tips on outside, gland-dotted.
Cocci spreading, 2–4 mm long, outer angle shortly beaked to minutely apiculate.
Flowering: late winter to spring. Fruiting early summer.
Distribution and occurrence: A single extant population from the Broken Back Range near Cessnock, and one historical collection from Munghorn Gap Nature Reserve near Wollar. Grows in sparse heathland or very open low woodland in skeletal sandy soils on exposed rocky terrain.
NSW subdivisions: NC, CWS
Threatened species: NSW BCA: Critically Endangered
Text by R.L. Barrett, March 2026
Taxon concept: S.A.J.Bell and N.G.Walsh (2015) Leionema lamprophyllum subsp. fractum (Rutaceae); a new and highly restricted taxon from the Hunter Valley of New South Wales. Telopea 18: 505–512. https://doi.org/10.7751/telopea9226
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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