Button Cactus

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Epithelantha micromeris

Button Cactus, a reference photo
Photo: Leticia Jiménez Hernández · CC BY-SA 4.0 (licence)

Epithelantha micromeris is a button cactus in the genus Epithelantha, found in Arizona, New Mexico, Texas and northeast Mexico. It is characterized by its white-grey spines growing on a globular shaped stem. The density of its white spines give it the illusion of being completely grey, making it very difficult to see the green color beneath. It grows to be 1–5 cm tall, and roughly 2–4 cm in diameter. E. micromeris produces small, pink-white flowers, often considered to be some of the smallest of the cacti. These flowers give way to a bright red, cylindrical fruit which contains several black seeds and also is edible.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Button Cactus 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
Magnoliopsida
Order
Caryophyllales
Family
Cactaceae
Species
Epithelantha micromeris

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