F. Muell. ex Miq., Nederl. Kruidk. Arch. 4:109 (1856).
Synonymy: O. varia Hook. f. var. rigidior Benth., Fl. Aust. 3:435 (1867).
, Opercularia turpis
Common name: Twiggy stinkweed.
Perennial shrublets, dioecious, with erect often virgate branches, terete but grooved and up to 30 cm long, arising from 1 main stem, glabrous to densely hairy; leaves sessile, linear to linear-lanceolate, rarely lanceolate, 2-14 x 1-3 ram, acute and often uncinate, glabrous to more or less hairy, with strongly recurved margins; stipules with 1 linear-triangular lobe and 1 small point on either side.
Inflorescence of 3-5 flowers basally fused into a hemispherical head, usually sessile, single or in pairs in the axils of leaves along the little-branched stems and if branched then unequal and not apparently dichotomously; calyx lobes linear-triangular, glabrous to hairy; anthers. 2-3 mm long.
Fruit dehiscing by an oblique split of the lid so as to form a star-shaped cavity after all seeds have been shed; seeds coffee-bean-shaped, more or less rugose on both surfaces.
Cunningham et al. (1982) Plants of western New South Wales, p. 622.
S.Aust.: FR, EA, EP, NL, MU, YP, SL, KI, SE. Vic.
Flowering time: Aug. — Nov.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
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