Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Commelinales
Spreading Dayflower, Creeping Dayflower
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Gill Newberry gn08_c_diffusa_fl_closeup
Two large upper petals and a very small blue lower petal, per Wildflowers of the Southern Mountains.
Gill Newberry gn08_c_diffusa_inf
Spathes are sickle-shaped (falcate) and their margins are not fused, per Wildflowers of Tennessee.