Houstonia serpyllifolia Michaux. Appalachian Bluet, Thyme-leaf Bluet. Phen: (Mar-) May-Jul. Hab: Streambanks, grassy balds, moist forests, seepy rock outcrops, spray cliffs, and moist disturbed areas. Dist: A Southern and Central Appalachian endemic: PA south to nw. SC and ne. GA.
Origin/Endemic status: Endemic
Syn: = F, G, K1, K3, K4, Pa, RAB, S, Tn, Va, W, WV, Terrell (1991), Terrell (1996); = Hedyotis michauxii – C, GW2, Rogers (1987)