Annual bluegrass plant growing in a clump. It is beginning to produce seed heads.

Annual bluegrass - Poa annua

Poa annua L.

Poaceae (Grass family)

 

MI Status

Non-native

Life cycle

Clump-forming winter or summer annual.

Leaves

Hairless, soft, light green leaves are folded in the bud and lack auricles. Leaves have linear margins (sides parallel) and distinctive boat-shaped tips.

Ligule

Slightly pointed membranous ligule.

Stems

Upright, bending, up to 1-foot-tall stems are clump-forming, enlarge by tillering and may root at the lower nodes.

Annualbluegrass Poa annua seed head
Annual bluegrass – Poa annua – seed head
Annualbluegrass Poa annua leaf tip
Annual bluegrass – Poa annua – seed head leaf tip

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Tag List
  • annuals,
  • msu plant & pest diagnostics,
  • turfgrass,
  • weed

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