Grass-like Bunchy flat-sedge spotted and confirmed along a Honolulu hillside road
iNaturalist: juliencw
Urban Ecology
The tufted, grass-looking weed popping up in roadside cracks and damp lawn patches near you may be a flat-sedge, and knowing the triangular stem and umbrella-like seed heads helps you tell it from true grass before you pull or mow it.
Someone photographed a Bunchy flat-sedge growing beside Round Top Drive in Honolulu and uploaded it to iNaturalist. Other users checked the photo and agreed on the ID, which earns it a research-grade label. Sedges look like grass but have their own features, and records like this show where they're growing.
Key Findings
Bunchy flat-sedge (Cyperus polystachyos) was recorded at Round Top Dr, Honolulu, Hawaii.
The observation reached research-grade status, meaning the community agreed on the identification.
The record adds a location data point for a sedge found in disturbed and damp urban and roadside sites.
chevron_right Technical Summary
A community observer confirmed Bunchy flat-sedge growing along Round Top Drive in Honolulu, and other iNaturalist users agreed with the ID. It's a small record, but it shows how everyday photos map where grassy weeds turn up around town.
Abstract Preview
Original paper
Bunchy flat-sedge (Cyperus polystachyos) observed in Round Top Dr, Honolulu, HI, US
Research-grade observation of Bunchy flat-sedge in Round Top Dr, Honolulu, HI, US.
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
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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...