BARBASCO
barbasco, joewood, Jacquinia keyensis
(noun) West Indian shrub or small tree having leathery saponaceous leaves and extremely hard wood
Source: WordNet® 3.1
Etymology
Noun
barbasco (countable and uncountable, plural barbascos)
A plant (Lonchocarpus urucu, now Deguelia rufescens var. urucu) native to parts of northern South America used as a poison for fishing and an insecticide.
An evergreen (Jacquinia barbasco, now Jacquinia arborea)
One of several inedible wild Mexican yams (Dioscorea mexicana and Dioscorea composita) from which progesterone can be synthesized.
Source: Wiktionary