Tridens flavus (L.) Hitchc.

Natural range: Canada to Mexico

Habitat: Pine woods, old fields

Recognition:  Mid-sized grass having purple paniculate inflorescences.  Spikelets 5-10 mm long, laterally flattened with 4-8 florets.  Lemmas notched, with a tiny point in the notch.  Might be mistaken at a glance for a large Eragrostis except for the notched lemmas.

Florida status: Native. Seasonal: appears in autumn