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Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Chrysopogon

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1 Upper lemmas of the sessile spikelets unawned or with awns to 8 mm long.
..2 Plants stoloniferous, forming clonal patches; calluses of the sessile spikelets 3-6.4 mm long, sharp-tipped, and covered with golden-yellow hairs
..2 Plants cespitose, clumped; calluses of the sessile spikelets 0.6-0.8 mm long, round-tipped, and covered with white hairs
1 Upper lemmas of the sessile spikelet awned, the awns either 2-3 cm or 10-16 cm long.
....3 Plant perennial; pedicellate spikelets 2.5-8 mm long
....3 Plant annual; pedicellate spikelets 7.2-15 mm long
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