F indicated native status for this species in North America, at least to the north, but R. Soreng (in FNA 24) considered it all introduced from Europe. Further clarification could come from research into early colls. and any records of planting for pasture. Anderson (1924) noted: "rare in Kentucky, and perhaps not established." P. trivialis is now locally abundant in thin woods along streams, especially in the Bluegrass Region and other areas with fertile soils. It is the only simple diploid Poa (2n = 14) known in eastern North America; most species are tetraploids or have polyploid series. Also, it is generally the last Poa to flower in Kentucky, mostly during late May to June (or later if mowed).