Poa annua

Poa annua
“Annual bluegrass”
POACEAE

Annual Weed

Native habitat : Europe

Conditions
Soil: average; better conditions bigger plant
Moisture: average
Light: full sun to part shade (will ripen and die sooner in full sun)
Exposure: general
Plant size (h x w): 1″ – 8″
Other: germinates fall to spring in cool moist weather,
dies down leaving a hole in summer heat

Aesthetic
Shape/stem: clumping, grass
Leaf: canoe shaped, green, blunt at end, long sheath clasping stem, smooth, finely serrated edges
Flower:  panicle open, triangular in shape, spikelets stalked, awnless, loosely arranged on pairs or branches, tingled lightly purple at end or else beigey green
Bloom: will flower from winter to spring, vigorous seeder all year around till it dies down for hot dry summers,
each plant can produce around 100 seeds
Other: shallow fibrous root, disappears leaving a hole in the summer

Removal
Remove by easily pulling out before it goes to seed ensuring you have taken the root too (may want to water lawn or area night before (esp. clay soil) to make it easier/quicker to pull
*once its established itself in a area it can be hard to get rid of because it is a prolific seeder
Propagate: seed; will naturally spread itself around

Uses
Landscape: introduced; weed; often found invading lawns, golf courses and garden beds
* often seeds itself around by attaching its seeds to shoes so keep that in mind
Medicinal: none known
Other: indicator plant (of soil)Vulnerabilities
Pests and disease: none significant
Deer resistant:
Other animals: 

Interest
Local info,: introduced but has naturalized itself around most of north america now
Nature: invasive cool season weed
Identification (key features): triangle arrangement of flower and broad canoe shaped leaves
Interesting facts:
Comments: can be a big problem on golf courses and leaves and ugly hole in yards for the summer