Northern Prairie Wildlife Research Center
Kentucky Bluegrass (Poa pratensis)
- Family: Grass (Poaceae)
- Flowering: April-July.
- Field Marks: Kentucky bluegrass has creeping rhizomes and pointed scales that subtend each flower.
- Habitat: Along rivers, damp meadows, pastures, and many other habitats.
- Habit: Perennial herb with extensive rhizomes.
- Stems: Erect, unbranched, smooth, up to 3 feet tall.
- Leaves: Leaves long and narrow, up to 6 inches long, up to 1/4 inch broad, smooth or somewhat rough to the touch.
- Flowers: Borne in spikelets, with 3-5 flowers per spikelet; each spikelet up to 1/4 inch long, on short, slender stalks; scales pointed at the tip, sometimes silky-hairy on the veins and with a tuft of cobwebby hairs at the base, up to 1/8 inch long.
- Sepals: 0.
- Petals: 0.
- Stamens: 3.
- Pistils: Ovary superior; styles usually 2.
- Grains: Elongated, smooth.
- Notes: The pollen of this species may cause hay fever.
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