Panicum L.

Spikelets all similar, globular or ellipsoid. Inflorescence usually broad and/or the spikelets distant. Leaves usually not xeromorphic Panicum

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Lower glume 60% or less the length of the spikelet

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Lower glume oblong or truncate

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Either; plants decumbent with panicles under 10 cm long; or plants erect or decumbent and less than 40 cm high with inflorescences with 2–3 branches and few spikelets

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Plants erect with much branched panicles mostly more than 10 cm long