| Poa infirma | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| (unranked): | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Genus: | Poa |
| Species: | P. infirma |
| Binomial name | |
| Poa infirma Kunth |
|
Poa infirma is a species of grass known by the common names weak bluegrass and early meadowgrass. It was first described from a specimen found in Colombia, but it is actually an introduced species in the Americas and is native to Europe.[1] It grows in many types of habitat, including disturbed areas. It is very similar to Poa annua, which is probably a daughter species,[1] and it is often mistaken for P. annua unless it is closely examined.[2]
This is a small, densely tufted annual grass growing up to 15 centimeters tall. It has thin, soft-haired, yellow-green leaves. The inflorescence is a series of branches bearing flattened spikelets which have tufts of curly hairs.