Manyspike flatsedge (Cyperus polystachyos) is a grass-like sedge, a species in the Cyperaceae family, that grows wild and as a lawn weed in warm regions. It thrives in damp or wet ground, and its tufted, narrow-leaved habit is the key identifier.
Family
Cyperaceae (Cyper family)
Grows as
Grass
Light
Full sun, Part shade
Water
Keep the soil consistently moist or wet, as it likes damp ground.
Soil
Moist, fertile soil, including wet or boggy ground.
Temperature
18–30 °C; protect below 10 °C
How easy
Easy
Native range
Tropics & Subtropics
Climate
subtropical
About
Cyperus polystachyos, also known as Pycreus polystachyos, and also called manyspike flatsedge in the US, or bunchy sedge, coast flatsedge, many-spiked sedge or Texas sedge in Australia, is a herbaceous species in the family Cyperaceae, widespread in tropical and subtropical areas around the world, sometimes extending its range into temperate regions.
Where it grows
It is common in the Neotropics as a weed in grass lawns.
Text excerpted from the Wikipedia article Cyperus polystachyos by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.