sensitive partridge pea
Scientific NameChamaecrista nictitans ssp. nictitans var. nictitans
Other Common Names:
wild sensitive senna
Synonyms (former Scientific Names):
Chamaecrista nictitans var. hebecarpa
Chamaecrista nictitans var. leiocarpa
Cassia aspera var. mohrii
Annual errect forb that can reach 10 to 50 cm in height.
Has pinnately compound, sensitive leaves with a slender stalk. Has an umbrella shaped gland below the lowest pair of leaflets that is much wider than the slender stalk. Around 20-36 leaflets per leaf and each leaflet is around 6 to 15 mm long and 1-5 mm wide. Small spine at the tip of the leaflets.
Forb with a tap root, without hair on stems usually, and compound leaves with bright yellow flowers.
Flower Seed Head
Has axillary, solitary flowers that are in a short raceme and bright yellow. Petals are not of equal size. The lowermost petal is about 2 times or more longer than the other 4.
Straight narrow seed pod that can be 0.5 to 2.5 inches long.
It is native to the USA and can be found all along the east coast, west to Arizona, and north to Wisconsin. It is found in thickets, roadsides, along ponds and bodies of water, and disturbed areas.
upright and nonwoody
Thorns or Spines
Approximate Flower Diameter
Dominant Flower Color
shorter than leaf
Stem Cross Section
round or oval