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Andropogon

 
Andropogon floridanus Scribn.

Natural range:   Georgia, Florida

Habitat:  Scrub

Florida status:  Native

Recognition:  Leaves long (often >32 cm).  Inflorescence branches usually abundant and crowded, (branches and/or peduncles long).  Peduncles usually 20-50 mm.  Spikelets 4-4.8 mm.  Awn 5-15 mm. Anther usually 1 (vs. 3 in A. ternarius).

Andropogon ternarius is similar but has shorter leaves < 35 mm, sparse inflorescence units (easy to count vs. crowded), longer spikelets (4.5)5-8 mm, long awns 10-25 mm, and 3 anthers.

Andropogon gyrans is also similar but usually shorter (< 1 m) and has characteristically large inflated spathes.