River club rush
Eleocharis acuta, Fam. Cyperaceae
Perennial sedge with short rhizome, 0.7m high.
| Weed Category: | |
| Weed: | No |
| Form or habit: | Sedges, Rushes and allies |
| Family: | Cyperaceae |
| Leaf: | Fine, upright, cylinder-shaped, deep green foliage that tapers to a fine point. Tufted and terete culms, 10-60cm (rarely to 90cm) in length with a diameter of 1-3mm. |
| Flower conspicuous: | Conspicuous |
| Flower colour: |
Yellow, Red, Brown |
| Flower description: | Inflorescence at the tip of the spike, composed of narrow-ovoid to narrow-cylindrical spikelets, 10-30 mm long. Glumes long-acute to broad-acute, midrib distinct, 3.5-4.5mm long, straw-coloured tinged red brown to dark red brown. Six to nine bristles, flattened below, strongly retrorsely toothed, rather unequal, reaching or somewhat overtopping the style base, occasionally reduced. Spring to summer. |
| Fruit conspicuous: | Conspicuous |
| Fruit colour: |
Brown, Yellow |
| Fruit: | |
| Fruit description: | Shiny, yellow to brown nut, plano-convex to biconvex, with angles obtuse, broad-obovoid, usually 1.5–1.7 x 1.1–1.2mm. |
| Habitat: | Wetland. |
| Distribution | Queensland, New South Wales, Victoria, Tasmania, South Australia, Western Australia, New Zealand, New Guinea. |
| Food source for: | |
| Toxicity: | No toxicity known |
| Origin: | Australia, New Zealand, New Guinea. |
| Notes: | Wetland indicator species. |
| Information sources: | Atlas of Living Australia (2022) Eleocharis acuta R.Br., PlantNET (2022) Eleocharis acuta R.Br. FloraOnline. |
