Panicum hillmanii

In habit and general appearance, closely resembling Panicum capillare var. capillare, but distinguished by the generally slightly coarser panicle branches, the rachilla which is shortly developed between the upper and lower glumes, the sterile floret which has the palea developed and c. half as long as the lemma, and the fertile lemma which has a conspicuous crescentic callus c. 0.7 mm wide, extending upward from the base. Flowers Dec.–Apr.