Plant: Perennial Herb, erect, branching, 1 1/2 to 5 feet tall.
The ribbing on the stalks is distinctive. Found in wet places. Naturalized
from cultivated plants. Common.
Flowers: The flowers are whitish-green appearing as clusters
of clusters, typical of this family.
Fruit: The small (1/12 inch long) fruits are smooth and oval with 5
prominent ribs.
Leaf: Coarsely divided; the lower ones long-stalked with 5 to 10 leaflets;
the upper ones with or without stalks and usually 3 leaflets.