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Key to Dichanthelium

Poaceae

Dichanthelium

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1 Plants densely tufted, often cushion-forming; leaves basally disposed, the blades ascending or spreading-ascending, not forming a distinct rosette of basal leaves shorter than the culm leaves; autumnal culms branching basally or from the lower nodes
1 Plants less densely or sparsely tufted, not cushion-forming; leaves well-distributed on the culm, usually much longer than the short, often broad and spreading basal rosette leaves; autumnal culms usually branching from the mid and upper nodes.
  2 Spikelets 3.3-5.2 mm long
  2 Spikelets 0.8-3.2 mm long.
    3 Spikelets 2.1-3.2 mm long.
      4 Larger culm blades 13-25 mm wide
      4 Larger culm blades < 13 mm wide.
        5 Culm nodes not bearded, the lowermost sometimes puberulent or sparsely hairy
    3 Spikelets 0.8-2.0 mm long.
          6 Lower culm internodes variously hairy
          6 Lower culm internodes glabrous