Poa Annua - Distribution and Habitat

Distribution and Habitat

It is a common weed of cultivation, known in the Americas as annual bluegrass. It occurs as a common constituent of lawns, where it is also often treated as a weed, and grows on waste ground. However, it is sometimes the most suitable lawn grass for many sites, and can form most of the entire grass sward in some lawns. On lawns it grows better in rich soils, but is usually small enough to be overlooked. It does not compete with other plants. Many golf putting greens, including the famously fast Oakmont Country Club greens, are annual bluegrass, although many courses have converted to creeping bentgrass (Agrostis stolonifera).

It has appeared on King George Island in the Antarctic South Shetland Islands as an invasive species, as well as on Australia's subantarctic Heard and Macquarie Islands.

• Habit

• Ligule is silvery and pointed.

• the panicle is open and triangular shaped