RUBIACEAE - - Madder Family

Houstonia canadensis Willdenow ex Roemer & J.A. Schultes — Canada Bluet

Habitat:

Dry limestone barrens (sometimes locally abundant in shallow soils over limestone), limestone woodlands and outcrops.

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)].