March - July
0.1 - 0.5
Similar to Phalaris caroliniana which has no awns on the florets. Alopecurus carolinianus has 3-5 mm awns on its lemma. Short leaf with bluish sheath. Seeds drop from top first leaving a 'rat tail'.
Produces little seed or forage.
Loamy, usually very sandy soils in prairies and disturbed areas.