Tillandsia usneoides

Spanish moss, a reference photo
Photo: Gh5046 at English Wikipedia · Public domain

Spanish moss (Tillandsia usneoides) is an epiphytic flowering plant that often grows upon large trees in tropical and subtropical climates. It is native to much of Mexico, Bermuda, the Bahamas, Central America, South America (as far south as northern Patagonia), the Southern United States, and West Indies. It has been naturalized in Queensland (Australia). It is colloquially known as "old man's beard" in several places, and known as "grandpa's beard" in French Polynesia. It has the widest distribution of any bromeliad.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Spanish moss 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.

Classification

Kingdom
Plantae
Phylum
Tracheophyta
Class
Liliopsida
Order
Poales
Family
Bromeliaceae
Species
Tillandsia usneoides

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Spanish moss (Tillandsia usneoides) · B.inomen