SimplePlant

Cyperaceae

Sticky flatsedge

Cyperus trachysanthos Hook. & Arn.

Family
Cyperaceae
Genus
Cyperus

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Sticky flatsedge: Cyperus trachysanthos (seed heads). Location: Maui, Hoolawa Farms
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons

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Common names

By language (2)
English
Sticky flatsedge, Pu'uka'a
Hawaiian
Pu'uka'a, Pu`uka`a

Characteristics

Growth habit
Graminoid
Lifespan
Perennial
In the US and Canada
Hawaii: native

Photos

More in Cyperus

Sources: classification from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.