Houstonia longifolia Gaertn.  
Family: Rubiaceae
Long-Leaf Summer Bluet
[Houstonia longifolia var. musci]
Houstonia longifolia image
Paul Rothrock  
Houstonia longifolia image
Paul Rothrock  
Houstonia longifolia image
Paul Rothrock  
Houstonia longifolia image
Houstonia longifolia image
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The National Science Foundation
This project made possible by National Science Foundation Award 1410069