Houstonia subviscosa (C. Wright ex A. Gray) A. Gray. Nodding Bluet. Phen: Mar-May (-Jun). Hab: Sandy soils, dunes. Dist: Nc. TX south through se. and s. TX to (?) ne. Mexico.
Origin/Endemic status: Native
Synonymy: = K3, NcTx; = Hedyotis subviscosa (C.Wright ex A.Gray) Shinners – Tx
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