Botanical name : Amorphophallus dubius BI (A.sylvaticus Kunth)
Family : Araceae
SANSKRIT SYNONYMS
Vanasoorana, Vajrakanta, Kanana kanda
AYURVEDIC PROPERTIES
Rasa    : Katu, Kashaya, Madhura
Guna   : Guru, Snigdha
Virya   : Ushna
PLANT NAME IN DIFFERENT LANGUAGES
English  : Wild yam.
Hindi  : Vansooran, Bansooran
Malayalam : Kattuchena
Distribution – Throughout India growing wild in planes.
PLANT DESCRIPTION
A perennial erect herb with hemispherical underground corm. Leaves compound, large, single, stout petioled; leaflets or variable size, male and female flower are in single inflorescence, covered with wide, pointed spathe; fruits berries, bright red when ripe, containing 2-3 small seeds. 
MEDICINAL PROPERTIES
Plant pacifies vitiated vata, kapha, hemorrhoids, hemorrhage, arthritis, inflammation, vomiting, cough, anorexia, amenorrhea, dysmenorrhea, sexual weakness and general debility.
Useful part : Corms.