Dig deeper at SERNEC, a consortium of southeastern herbaria.
Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales
Manual of the Grasses of the US (Hitchcock & Chase, 1950)
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Gill Newberry gn09_c_spinifex_inf
Raceme 4-10cm long, the burs not crowded, body finely and densely pubescent, per Manual of the Grasses of the United States.
Gill Newberry gn09_cenchrus_closeup
Involucre of spines fused into a bur; spines stout, 2-5mm long, per Weakley's Flora.