About Phlox alyssifolia Greene
Phlox alyssifolia Greene, commonly called alyssum-leaved phlox, produces many tough, tufted branches that grow just 2 to 4 inches tall. Its five-petaled flowers, which are white and sometimes tinted pale pink or purple, open at the tips of branches in May. This species is native to grasslands in Wyoming, Montana, Nebraska, and the Dakotas in the United States, and its range also extends into the prairie provinces of Canada. It prefers to grow in dry grassland habitat.