Annual Bluegrass      Poa annua L.
Photographs by Dr. Michael Pfeiffer
Sign Found on all continents. A scourge in golf turf. Very diverse genetic makeup. The annual form is P. annua var annua. The perennial form is P. annua var reptans
Infestation in Golf Green
click for a larger image 		Plants in Dormant Bermudagrass
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Plant in Dormant Bermudagrass
click for a larger image 		Plants in Dormant Bermudagrass
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Ligule and Sheath
click for a larger image 		Leaf Keel
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Inflorescence
click for a larger image 		Inflorescence and Leaf Crinkle
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Young Plant
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OR Annual Perennial