A plethora of poa ploidy problems

Poa annua, better know simply as poa, is not really a turfgrass variety—it is a weed. It is also not a single plant, but a group of many variants or biotypes. There are estimates that there are between 5 to 20 different poa biotypes on a single golf course green. Poa greens do not even contain plants with a consistent number of chromosomes. Most greens have a combination of the dwarf greens-type poa that are diploid with 14 chromosomes and…