Senna holosericea's grows to 0.5m tall, its flowers are yellow in long axillary and it has five petals.
Senna holosericea is a prostrate or ascending perennial herb that grows to 0.5m tall. Flowers are yellow in long axillary and terminal racemes. Has five petals, and ten stamens, anthers unequal in size: 2 large, 7mm long; 5 medium sized, 23 mm long and 3 small, 1mm long. 
