Sisymbrium altissimum (Tall Tumblemustard) is a species of annual herb in the family crucifers. They have a self-supporting growth form. They are associated with freshwater habitat. They are native to Western North America and South America. They have simple, broad leaves. Flowers are visited by Checkered White, Systoechus oreas, and Halictus farinosus. Individuals can grow to 0.56 m.
EOL has data for 21 attributes, including: