Carex bullata

Button sedge, a reference photo
Photo: Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 435. Courtesy of Kentucky · Public domain

Carex bullata is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to south eastern parts of Canada and eastern parts of the United States. It has the common name of the button sedge.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Button sedge 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
Carex
Species
Carex bullata

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