Smyrnium olusatrum (Alexanders) is a species of biennial herb in the family umbellifers. They have a self-supporting growth form. They have simple, broad leaves. Flowers are visited by Melanostoma scalare, House fly, Agrypnus murinus, and Eoseristalis pertinax. Individuals can grow to 0.83 m.
EOL has data for 18 attributes, including: