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Eleocharis macbarronii K.L.Wilson
Family Cyperaceae
Eleocharis macbarronii K.L.Wilson APNI*

Description: Tufted perennial, occasionally proliferating, with small ovoid tubers to c. 5 mm long.

Culms terete, grooved, 25–75 cm long, 0.8–1.5 mm diam.

Spikelet cylindrical, 5–18 mm long. Glumes acute to obtuse, with indistinct midrib, margins hyaline, to 3.5 mm long, pale straw-coloured. Bristles absent. Stamens 3, anthers 1–1.5 mm long. Style 3-fid.

Nut turgidly biconvex to terete, obpyriform to obovoid, narrowed to neck, with c. 8 prominent longitudinal ridges and transversely elongated cells on each face, 1.2–1.5 mm long, 0.6–1 mm diam., yellow-brown tinged very dark brown; style base about a sixth as long and half as broad as nut.

Flowering: spring–summer.

Distribution and occurrence: Scattered on the near Western Plains; also an old record from near Richmond. Also in SE Queensland and northern Victoria.

Grows in seasonally wet situations, on clayey soil, e.g. in rice crops.
NSW subdivisions: CC, NWP, SWP
Other Australian states: Qld Vic.
AVH map***

Distinctive inflated round to oval cell outlines visible on culms with hand lens.

Text by K. L. Wilson (1993); edited Sept 2006, March 2014.
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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