Brown hatpins
Fimbristylis tetragona, Fam. Cyperaceae
Rhizomatous, tufted perennial or annual sedge, 10-90cm high, with light bluish green culms (stems) are smooth, four sided and occur in dense clumps. tetragona from the Greek ‘tetra’ four and ‘gona’ angled, referring to the four sided culms.
| Weed Category: | |
| Weed: | No |
| Form or habit: | Sedges, Rushes and allies |
| Family: | Cyperaceae |
| Leaf: | Leaves lack a leaf blade. At the base of the stem, there are a few leaf sheaths with brown, membrane-like margins. |
| Flower conspicuous: | Conspicuous |
| Flower colour: |
White, Brown |
| Flower description: | Brown or white oval to ellipsoid inflorescence occurs singly at the tip of the culm. The apex or tip of the inflorescence is rounded or obtuse. |
| Fruit conspicuous: | Conspicuous |
| Fruit colour: |
Brown |
| Fruit: | |
| Fruit description: | Light brown, narrowly oblong nutlets, 2.5mm long, attached to a 0.7mm stalk-like stipe. |
| Habitat: | Wetland. |
| Distribution | Queensland, Northern Territory, Western Australia, Malesia, Asia. |
| Food source for: | |
| Toxicity: | No toxicity known |
| Origin: | Australia, Malesia, Asia. |
| Notes: | |
| Information sources: | Florabase (2022) Fimbristylis tetragona R.Br., Royal Botanic Gardens Kew (2022) Fimbristylis tetragona R.Br. Plants of the World Online., Singapore National Parks (2022) Fimbristylis tetragona R.Br. Flora and fauna web. |
