Pineapple sedge
Cyperus pedunculatus, Fam. Cyperaceae
Strand plant with shoots arising singly or in small clusters from a long, much branched rhizome, buried in sand. Smooth culms to 12 x 0.2cm. Synonym of Remirea maritima.
| Weed Category: | |
| Weed: | No |
| Form or habit: | Sedges, Rushes and allies |
| Family: | Cyperaceae |
| Leaf: | Sheath apices truncate; blades with keeled midrib, linear-lanceolate, 3–8 cm × 2–6 mm, leathery, margins scabridulous. |
| Flower conspicuous: | Conspicuous |
| Flower colour: |
White, Red, Brown |
| Flower description: | Inflorescences with one to six leaf-like bracts. Spikelets ovoid to ellipsoid; rachilla deciduous, articulate at base, internodes 2-2.6 x 1mm, corky, wings persistent. Ovate bract, 2-2.5mm. Two to three floral scales, off-white to reddish brown, 5-9-veined, ovate, 3.3-3.6 (-4) x 1.3-1.7mm. |
| Fruit conspicuous: | Conspicuous |
| Fruit colour: |
Brown |
| Fruit: | |
| Fruit description: | Brown, substipitate, oblong to ellipsoid achenes, 1.8-2 x 0.5-0.6mm, apex acute, papillose. |
| Habitat: | Beach scrub, beach strand, coastal dune. |
| Distribution | Queensland, Northern Territory, New Guinea, Malesia, Asia, Pacific Islands, Africa, America. |
| Food source for: | |
| Toxicity: | No toxicity known |
| Origin: | Australia, New Guinea, Malesia, Pacific Islands, Asia, Africa, America. |
| Notes: | |
| Information sources: | JSTOR (2022) Cyperus pedunculatus Global Plants., Royal Botanic Gardens Kew (2022) Cyperus pedunculatus (R.Br.) J.Kern. Plants of the World Online. |
