Barbasco

Barbasco is the name of several plants that contain poisonous chemical compounds that have been used for fishing by indigenous populations of the Americas:

Lonchocarpus urucu, used by Shuar and Nukak peoples as a poison for fishing.
Deguelia utilis, used in Brazil and Peru as a poison for fishing.
Jacquinia barbasco, an evergreen.
One of several inedible wild Mexican yam (Dioscorea mexicana and Dioscorea composita) from which progesterone can be synthesized.

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