Tufts to 15 cm diam. Leaves flat, 7–18 cm long, 1–3 mm wide; margins prominent, glabrous or with softly appressed plumose hairs 0.8–1.7 mm long. Inflorescence capitate, many-flowered; scape 4–12.5 cm long, as long as or shorter than leaves, with a leaf-like bract 14–33 mm long near base and 2 shorter, leaf-like bracts subtending inflorescence. Perianth 7–12 mm long, yellow ageing reddish, loosely tomentose outside with branched hairs and a few longer hairs near base, shortly woolly inside; lobes 4–8 mm long. Stamens uniseriate or very slightly biseriate; filaments 1 mm long; anthers 3–5 mm long. Style 5.5–10 mm long.
Readily identified by its flat leaves with short plumose marginal hairs (sometimes, in subsp. absens, on the lamina as well), and its uniseriate stamens with anthers much longer than filaments. Allied to Conostylis latens, differing in its smaller leaves and flowers, hairs on leaf margins shorter and less spreading, and its earlier flowering season. Variable in leaf margins and indumentum. There are two subspecies.
Author - S.D. Hopper, R.W. Purdie, A.S. George, S.J. Patrick
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Cite this profile as: S.D. Hopper, R.W. Purdie, A.S. George, S.J. Patrick. Conostylis crassinerva, in (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Conostylis%20crassinerva [Date Accessed: 14 March 2025]