Smooth Crabgrass (Digitaria ischaemum)
A common roadside and garden weed. It is an annual grass producing an inflorescence with two or more narrow branches lined with tiny spikelets.
Structure: Prostrate or ascending growth with hairless leaves, sheaths, and stems that do not root at the node
Life Cycle: Summer annual
What To Look For: Dull green, sometimes purple-tinged leaves with margins that may be rough and sharply pointed, sparsely pubescent near the base, 1″ to 4″ long, and 1/8″ to 1/4″ wide
Growth Period: Mid-spring through summer