Pisonia
noun
Pi·so·nia
pə̇ˈsōnēə,
pīˈs-
: a genus of tropical often thorny trees, shrubs, and vines (family Nyctaginaceae) having small dioecious apetalous flowers and utricular fruits see cockspur sense 2b
Word History
Etymology
New Latin, irregular from Willem Piso †about 1678 Dutch physician and traveler + New Latin -ia