Phlox [Greek = flame] is a genus of 67 species of perennial and annual plants in the family Polemoniaceae. They are found mostly in North America [one in Siberia] in diverse habitats from alpine tundra to open woodland and prairie. Some flower in spring, others in summer and fall. Flowers may be pale blue, violet, pink, bright red, or white. Many are fragrant.
Phlox glaberrima: Marsh phlox, Smooth phlox
Plant Type: Herbaceous perennial
Flower: Blooms in spring to early summer; 1-inch-wide, tubular flower with 5 reddish purple spreading lobes; flowers form large, showy, pyramidal clusters.
Photo: Brookhaven, Atlanta, GA, 20121004