Cassia artemisioides - image Cassia didymobotrya - image Cassia fistula - image Cassia occidentalis: Fedegoso - Description and photographs of this small tree, and information on its herbal properties, tribal and herbal medicine uses, the chemicals it contains, its biological activities and clinical research. Cassia alata: Guajava - Description and photographs of this shrub, and information on its herbal properties, tribal and herbal medicine uses, the chemicals it contains, its biological activities and clinical research. Cassia fistula: Canafistula - Description and photographs of this fast-growing tree, and information on its herbal properties, tribal and herbal medicine uses, the chemicals it contains, its biological activities and clinical research. Cassia fistula - Several photographs of this tree, known as Canafistula. Cassia corymbosa - General information and classification.