Rattlebush, Drummond’s Rattlebush, Siene Bean, Coffee Bean

Sesbania drummondii

Family: Fabaceae

Plant Description: Short-lived shrub to 120 cm high or higher. Leaves pinnate, alternate, with leaflets 1.2-2.5 cm long. Flower is a raceme, the upper petal 12-16 mm long, orange-yellow. Fruit is a four-winged legume.

Plant Trivia: Poisonous to livestock

Field Identification: Mostly found near water. Seedpod has a deep cleft on each edge.

Occurrence: Common in swales, depressions, ditches, coastal prairies, marshes, and other moist low grounds.

Bloom Period: July – November

Plant Use:

Key to the species of Sesbania:

  1. Fruits winged…………………………………………………………………...S. drummondii

Fruits not winged……………………………………………………………S. exaltata