Cladonia uncialis

Thorn Lichen, a reference photo
Photo: Jason Hollinger · CC BY 2.0 (licence)

Cladonia uncialis is a species of fruticose, cup lichen in the family Cladoniaceae. It was first described as a new species by Swedish taxonomist Carl Linnaeus in 1753. It was transferred to the genus Cladonia by Friedrich Heinrich Wiggers in 1780. In North America, the lichen is colloquially known as the thorn Cladonia or the thorn cup lichen.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Thorn Lichen 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
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Lecanorales
Family
Cladoniaceae
Species
Cladonia uncialis

Found one? Take a photo and B.inomen will suggest what it is, free.

Check your photo

More species