Habitat
This perennial grows in mesic environments including riparian zones and blooms in late summer and autumn.References:
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Tall Rattlesnakeroot
Nabalus altissimus
''Nabalus altissimus'' , commonly called the tall rattlesnakeroot or white lettuce, is a species of plant in the family Asteraceae. In 2010 it was reclassified from the genus ''Prenanthes'' to ''Nabalus''.
