Houstonia humifusa (A. Gray) A. Gray. Mat Bluets. Phen: Mar-Jun (-Oct). Hab: Sandy prairies, dunes, other sandy places, disturbed areas. Dist: OK and NM south through se., s. and w. TX.
Origin/Endemic status: Native
Synonymy: = K3, K4, NcTx; = Hedyotis humifusa A.Gray – GrPl, Tx
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