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Bulbostylis
1.
Spikelets umbellate on long wiry pedicels...
1. Spikelets sessile in a tight cluster...2
2. Achenes 0.5-0.6 mm long; spikelets reddish; achene not rugose;
longest bracts usually (not always) < inflorescence...
2. Achenes > 1 mm long; spikelets greenish or tan; achenes rugose;
longest bracts > inflorescence...3
3. Bracts serrate...
3. Bracts pectinate-lobed...
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