Cyperus giganteus

Piripiri, a reference photo
Photo: Daderot · Public domain

Cyperus giganteus (also known as piripiri) is a perennial herbaceous plant. It belongs to the genus Cyperus. Its native range extends from Jalisco in west-central Mexico as far south as Uruguay, and also grows on some islands in the Caribbean (Cuba, Hispaniola, Puerto Rico, Jamaica, and Trinidad). The species is sparingly naturalized in eastern Texas and southern Louisiana.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Piripiri being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Classification

Kingdom
Plantae
Phylum
Tracheophyta
Class
Liliopsida
Order
Poales
Family
Cyperaceae
Genus
Cyperus
Species
Cyperus giganteus

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Piripiri (Cyperus giganteus) · B.inomen