It is categorised as Shweta – white and Krishna Asthiparni – black variety. (Bha.pra)
Further it is again classified into varieties depending on the length of the inflorescence — bigger and the smaller variety known as Chitta Adolodakam in Malayalam.
The juice of the leaves of the smaller variety of Vasaka is a vasoconstrictor. Hence is used in acute conditions of bleeding disorders, like bleeding per rectum or per vagina, menorrhagia, epistaxis etc., whereas the dry roots of bigger variety is used as decoction which acts as Vasodilator and used in asthma and chest congestion.