Real Dictionary

pokeweed in American English
a North American plant (Phytolacca americana) of the pokeweed family, with clusters of purplish-white flowers, reddish-purple berries, and smooth leaves and stems: the roots and berry seeds are poisonous
designating a family (Phytolaccaceae, order Caryophyllales) of dicotyledonous trees, shrubs, and plants
noun: a tall herb, Phytolacca americana, of North America, having juicy purple berries and a purple root used in medicine, and young edible shoots resembling asparagus

pokeweed in British English
noun: a tall North American plant, Phytolacca americana, that has small white flowers, juicy purple berries, and a poisonous purple root used medicinally: family Phytolaccaceae