Family: Cyperaceae
Cyperus iria
Citation:
L., Sp. Pl. 45 (1753).
Synonymy: Not Applicable Common name: None
Description:
Annual, to 50 cm high; stems slender to setaceous, triquetrous, solitary or tufted; leaves narrow, flaccid, shorter or longer than the stems; bracts 2-5, spreading, the lower longer than the inflorescence.
Umbel very variable, simple or compound or loose, or in small specimens reduced to a small cluster; spikelets in well-developed inflorescences distinctly spicately arranged, bright-brown or golden to greenish, linear, 6-30-flowered, 4-20 mm long, 1.5-2.5 mm wide; rhachilla not winged; glumes somewhat distant, very broad and obtuse, obovate in profile, with a 3-5-nerved back and practically nerveless sides, 1.25-1.75 mm long; style 3-branched.
Nut somewhat obovoid, obtuse, cuneate, c. 1.3 x 0.8 mm, triquetrous with concave sides, brown, the angles shiny, base angular, tip pointed at the base of the style and black, about as long as the glume.
Published illustration:
Cunningham et al. (1982) Plants of western New South Wales, p. 162.
Distribution:
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Grows especially in wet places.
S.Aust.: NW, LE, GT. N.T.; Qld; N.S.W. Africa and Asia.
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Conservation status:
native
Flowering time: Jan. — June.
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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:
No text
Author:
Not yet available
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