Scientific NameCassia fasciculata
All leaves are divided into two rows of 8 to 15 leaflet pairs that are arranged oppositely from one another (pinnately compound). Each leaflet is linear to oblong in outline, approximately to 1 inch long by 2 to 4 mm wide. All leaflets occur on a petiole and a distinctive gland occurs on the underside of the petiole below the first leaflet pair.
Showy yellow flowers and leaves that are divided into 8 to 15 pairs of oppositely arranged leaflets. Also, the gland that occurs on the petiole below the first leaflet pair helps to distinguish this weed from other weeds with pinnately compound leaves.
Flower Seed Head
Arise from the position between the petiole and the stem (leaf axils). Flowers consist of 5 bright yellow petals and have some red mottling. Flowers are approximately 1 inch wide and occur on long (10 to 25 mm) flower stalks (pedicels).
A legume that is linear in outline, approximately 1 to 3 inches long and 4 to 6 mm wide. Each legume contains 4 to 20 seed.
Partridgepea may be found throughout the eastern half of the United States.
upright and nonwoody
Thorns or Spines
Approximate Flower Diameter
Dominant Flower Color
longer than leaf
Stem Cross Section
square or multi-edged