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Lepidosperma evansianum K.L.Wilson
Family Cyperaceae
Lepidosperma evansianum K.L.Wilson APNI*

Description: Tufted perennial with short rhizome. Culms rigid, erect, compressed, oval in cross section to ± biconvex, striate, glabrous, smooth, 20–55 cm high, 1.0–1.5 mm diam.; margins rounded, smooth.

Leaves similar in form to culms but slightly shorter, 0.7–1.5 mm wide; sheath straw-coloured to dark grey-brown at base, not viscid, ± shining.

Inflorescence oblong to ovate in outline, narrow, erect, 5–7 cm long, c. 1 cm diam.; involucral bract shorter than inflorescence. Spikelets ± numerous and densely clustered, 4–6 mm long. Glumes 5–7, long-acute to acute, often mucronate, glabrous or puberulous near apex, mixed red-brown and straw-coloured to grey-brown with age; lowest 2 or 3 empty, about half as long as fertile glumes; fertile 6.0–6.5 mm long. Scales 4 or 5, about a quarter the length of nut (including bristle portion: about three-quarters), whitish to grey. Anthers 2.2–3.3 mm long, excluding appendage 0.3–0.5 mm long.

Nut subterete, obovoid to ellipsoid, 1.8–3.8 mm long, 1.0–1.5 mm diam., straw-coloured or grey-green, smooth or wrinkled, shining, minutely reticulate under surface; style base persistent, thickened, pyramidal, glabrous, from about half as long as to equalling nut body.

Photo Karen L Wilson

Flowering: Spring–summer.

Distribution and occurrence: Blue Mtns.

Grows on wet sandstone cliff faces.
NSW subdivisions: CT

Threatened species: NSW BCA: Vulnerable
AVH map***

This differs from most other species of Lepidosperma in having an elongated style base. Also, the hypogynous scales have a long bristle portion at apex about as long as basal scale-like portion or slightly longer.

Text by K. L. Wilson
Taxon concept: Flora of NSW 4 (1993)

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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