Scientific NameSesbania exaltata
Other Common Names:
Colorado river hemp
Synonyms (former Scientific Names):
The stems are thick and smooth with two faint ridges along the upper portion, and the stem tips have few or no hairs.
The leaves are 4-12 inches long and may have from 20-70 leaflets. The leaflets can be up to 3.5 cm long and 8 mm wide, and are smooth and somewhat waxy beneath.
It can be easily identified by its leaves, which are composed of many smaller leaflets, large yellow flowers and a distinctive curved seedpod.
Flower Seed Head
The petals are yellow and are often streaked or spotted with purple.
The fruit is a dry, smooth, linear pod from 10-20 cm long and 3-4 mm broad. Each pod contains from 30-40 seeds.
Hemp sesbania occurs in low sandy fields, sand bars of streams, roadside ditches, along ponds or streams, and in disturbed urban or agricultural areas.
upright and nonwoody
Thorns or Spines
Approximate Flower Diameter
Dominant Flower Color
shorter than leaf
Stem Cross Section
round or oval