RUBIACEAE - - Madder Family

Houstonia serpyllifolia Michaux — Appalachian Bluet, Thyme-leaf Bluet

Habitat:

Streambanks, grassy balds, moist forests, seepy rock outcrops, spray cliffs, and moist disturbed areas. A Southern and Central Appalachian endemic. The flowers are very similar to, but usually a brighter blue than, the more widespread H. caerulea.

Habitat information from:
Weakley, Alan S., Flora of the Southern and Mid-Atlantic States, Working Draft of 21 May 2015.

Kartesz, J.T., The Biota of North America Program (BONAP). 2015. North American Plant Atlas. (http://bonap.net/napa). Chapel Hill, N.C. [maps generated from Kartesz, J.T. 2015. Floristic Synthesis of North America, Version 1.0. Biota of North America Program (BONAP). (in press)].