Definitions for poa
Poa, genus Poa(noun)
chiefly perennial grasses of cool temperate regions
Any grass of the genus Poa.
a genus of grasses, including a great number of species, as the kinds called meadow grass, Kentucky blue grass, June grass, and spear grass (which see)
U.S. National Library of Medicine
A plant genus of the family POACEAE that contains the Poa p Ia allergen and allergen C KBGP.