Photograph from Lewis and Clark Herbarium/Academy of Natural Sciences
White Milkwort
Polygala alba
August 10, 1806, in McKenzie County, North Dakota.
Numerous slender, erect stems, each topped by tiny, white, bilaterally symmetrical flowers in a narrowly cone-shaped raceme. Height: 8-14 in (20-35 cm).
Sandy flats and rocky hills.
Eastern Montana south to eastern Colorado, New Mexico, and central Arizona, east to Texas, and north through much of the Great Plains to Minnesota; also in Mexico.