Flora of the Southeastern United States
2022 Edition

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RUBIACEAE

Houstonia micrantha (Shinners) Terrell. Southern Bluet. Phen: Feb-Apr. Hab: Dunes, sandy soils, granitic flatrocks, disturbed areas, roadsides. Dist: E. and c. GA west to sc. KY, sw. TN, s. MO, nw. AR, south to w. FL Panhandle, s. MS, s. LA, and e. TX. In 2017-2018, found eastwards of its known native distribution on roadsides and other disturbed areas in Wake County, NC (B. England, pers. comm., 2017, 2018). Reported for Barren County, KY (Brock 2020).

Origin/Endemic status: Native

Syn: = Ar, Fl5, K1, K3, K4, Mo3, NcTx, Tn, WH3, Terrell (1996); = Hedyotis australis – Tx, Rogers (1987); = Houstonia pusilla – S, misapplied

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image of plant© Richard & Teresa Ware [image randomly selected]