Pokeweed
Origin
poke("Phytolacca americana") + weed. The first element, poke, is from Powhatan.
Charles L. Cutler, O Brave New Words!: Native American Loanwords in Current English (ISBN 0806132469, 2000)
Oxford Dictionary of English (ISBN 0199571120)
Noun
pokeweed
(plural pokeweeds)- A poisonous North American plant, Phytolacca americana, with reddish stems, broad leaves, clusters of white flowers, and dark purple berries.