July 28, 1806, along the Yellowstone River, Montana.
Leaves may be light green, variegated, or entirely white. Tiny flowers, each with whitish, petal-like bracts, are borne in clusters atop the stems. Height: 1-3 ft (0.3-0.9 m).
Dry slopes; disturbed prairies; roadsides.
Montana to New Mexico, east to southern Minnesota, western Iowa, western Missouri, and Texas; naturalized in waste areas east to the Atlantic.
