Tanners Cassia is a branched shrub, growing up to 1-1.5 m high. It has a smooth reddish-brown bark. It has many ascending branches and 8-10 cm long pinnate leaves. Tanner's Cassia is a branched shrub, growing up to 1-1.5 m high. It has a smooth reddish-brown bark. It has many ascending branches and 8-10 cm long pinnate leaves. There are 8-12 pairs of leaflets, each 2-3 cm long. Bright yellow flowers appear in racemes at the end of branches. The flowers are 4-5 cm across. The upper three stamens are reduced to staminodes. Fruit is a 7-12 cm long, flat brown pod