Family: Cyperaceae
Cyperus lhotskyanus
Citation:
Boeckeler, Bot. Jb. 5:498 (1884).
Synonymy: Mariscus rutilans C.B. Clarke, Kew Bull. add. ser. 8:18 (1908); C. rutilans (C.B. Clarke)Maiden & Betche, Census N.S.W. Pl. 28 (1916).
Common name: Flat-sedge.
Description:
Perennial, with a short but distinct creeping rhizome; stems tufted, 10-60 cm high, rather slender, trigonous, finely striate, smooth, with bases non-bulbous (cf. C. sp. aff. cunninghamii) and dull and pinkish or purple-red below but whitish above; leaves shorter than or equalling the stems, rather rigid but grass-like, flat or complicate, 2-3 mm broad; bracts like the leaves, 2 or 3, the lower much longer than the inflorescence.
Umbel simple to subcompound, with 3-7 somewhat stout more or less recurved rays to 11 cm long; spikelets subdigitate, numerous in dense subglobular heads, brown, oblong-lanceolate, 6-12 mm long, 2.5-4 mm broad, compressed, 8-12-flowered, usually deciduous as a whole when ripe; rhachilla not or but slightly winged; glumes rather close together, soon spreading with acute and mucronate erect or recurved tips, keeled and several-nerved, 2.6-3.5 mm long; style 3-branched.
Nut oblong or oblong-obovoid, subacute, shortly cuneate to the narrow base, 1.7-2 x 0.6-0.8 mm, trigonous, angles rounded, sides convex to concave, straw-coloured, covered with a shiny transparent faint reticulate-papillose layer, about two-thirds as long as the glume.
Distribution:
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Grows in wet places.
S.Aust.: SE. N.S.W.; Vic.
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Conservation status:
native
Flowering time: Nov. — Jan.
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SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
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Biology:
This species is very similar to C. sp. aft. cunninghamii and C. alterniflorus.
Author:
Not yet available
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