Colutea arborescens bladder-senna Fabaceae COAR*; Bx, pb (DeCandido 2001);



Colutea (Accessed 5/2014).

Colutea arborescens is a shrub to 4 m tall, multiple stems; roots harbor nitrogen fixing bacteria (USDA, NRCS 2006). 

Leaves pinnately compound, leaflets 7-13, to 3 cm long, oval to widest above middle, tip blunt to notched, surface often dull gray-green, pale below. 

Flowers yellow, with red markings, showy, to 2 cm long, pea-flower-shaped, in unbranched, long-stalked clusters of 2-8, June-Sept. 

Fruit dry, thin-walled, egg-shaped pods, to 8 long, 3 cm wide. 

Wetland status: NL. 

Frequency in NYC: Very infrequent. 

Origin: S. Europe, N. Africa. 

Habitat: Very infrequently escaped from cultivation. Prefers or tolerates soil pH 6-8.5; Very tolerant of drought, somewhat tolerant of shade, intolerant of salt (USDA, NRCS 2006).