An Illustrated Guide to ARIZONA WEEDS
The University of Arizona Press
ANNUAL BLUEGRASS, walkgrass
GRASS FAMILY-Gramineae
ANNUAL BLUEGRASS-Poa annua L.
DESCRIPTION-A low spreading annual which reproduces only by seeds. The tufted stems, often bent and rooting at the base, are 4 to 12 inches high. The bright green leaf blades are about 3 inches long. The flowering part is short, 1 to 4 inches long, with spreading branches and few spikelets. The bright amber grain is pointed at both ends.
DISTRIBUTION-Annual bluegrass is found in many moist places, but it primarily a nuisance in lawns where it may grow very luxuriantly, covering large areas for a very short period in the winter and spring, then dies out, leaving ugly patches. This European introduction occurs throughout most of the state; up to 8,000 feet elevation; flowering from March to September (higher altitudes).
Copyright (c) 1972 The Arizona Board of Regents
