Shrubs now presumed extinct, erect, male plants up to 1.3 m, female plants up to 3 m (Muir 4092). Stems erect, flexuose, slender, glabrous, purplish. Branches erect, thinly short-pubescent; the lower arising in clusters, foliaceous with ericoid leaves; the upper scattered, numerous and very slender in the male plant. Leaves dimorphic, those of young plants and those towards the base of older plants ericoid, up to 2.7 cm long, terete, glabrous; apex callused; upper leaves linear, obtuse, apex callused, narrowing to the base, in male plants up to 8 mm long, 1.2 mm broad, in female plants much larger, up to 3.9 cm long, 4 mm broad, involucre inconspicuous. Male inflorescence very numerous, 7 mm long, 3 mm diam., each bearing about 12 florets, peduncle 4-14 mm long. Basal bracts ovate, ciliate, glabrescent, varying in size, 1.5 mm long, 1 mm broad, decurrent, few in number some of which are scattered along the peduncle. Floral bracts 2 mm long, 0.7 mm broad, the outer ovate, the inner linear, thinly pubescent, ciliate above. Floral bud 5 mm long, enlarged above, glabrescent towards the apex. Perianth and base of style connate, 1.5 mm long, pubescent. Claw 1 mm long, pubescent. Limb 2.5 mm long, glabrous above. Anthers 2 mm long. Pollen triangular in polar view with sides convex 35 µ long, polar depth 20p. Style 1 mm free, glabrous. Stigma abortive, clavate, 1.7 mm long. Hypogynous scales absent. Receptacle 1 mm long, 0.5 mm diam. Female inflorescence about 1.2 cm long, 8 mm diam., ovoid, sessile, axiliaryor terminal. Basal bracts numerous, increasing in size towards the centre, up to 7 mm long, 5 mm broad, 61 cm number, ovate, concave, pubescent, ciliate, apex obtuse. Floral bract one only, 5.5 mm long, linear, obtuse, ciliate above, pubescent. Floral bud one only in each head, 1 cm long, pubescent. Perianth segments 6 mm long, each pubescent on all sides, glabrous adjacent to the ovary. Claw 2.5 mm long, recurved 90°, pubescent outside. Limb 2.2 mm long, pubescent. Staminode 1.5 mm long. Ovary 1 mm long, ovoid, densely short-pubescent. Style 7 mm long, filiform, narrower below, glabrous. Stigma 1.5 mm long, 1 mm broad, lateral, deeply cleft. Hypogynous scales absent. Mature female head 1.4 cm long, 8 mm diam., ovoid, single-fuited, dehiscent, with pubescent bracts. Fruit a nut, 6 mm diam., sparsely pubescent, awn-less.
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Rounded, dioecious shrub to 1.3 m (male), 3 m (female). Leaves dimorphic, lower terete, to 27 mm long, upper linear, to 8 mm long (male), to 39 mm long (female), involucral leaves similar. Male flower heads many, crowded, nodding, ± 3 mm diam., female 1-flowered, ± 8 mm diam.
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