Poa is a genus of about 500 species of grasses, native to the temperate regions of both hemispheres. Common names include
meadow-grass (mainly in Europe and Asia),
bluegrass (mainly in North America),
tussock (some New Zealand species), and
speargrass.
Poa (πόα) is Greek for "fodder".
Poa are members of the Pooideae subfamily of the Poaceae family.
(Wikipedia)