Sapindus mukorossi is a species of tree in the family Sapindaceae. The fruit is commonly known as Indian soapberry or washnut, and like other species in the genus Sapindus, it is called soapberry. It is also a native of Western coastal Maharashtra – Konkan, and Goa in India. Sapindus mukorrossi, known as the ritha or reetha tree in India (Hindi) and Nepal, is a deciduous tree that is grown in the lower foothills and midhills of the Himalayans, up to altitudes of 4000 feet. It is tolerant to reasonably ...