Typhonium flagelliforme (Lodd.) Blume, Rumphia 1: 134 1837. (Syn: Arum angulatum Griff.; Arum cuspidatum Blume; Arum divaricatum L.; Arum flagelliferum Griff.; Arum flagelliforme Lodd.; Arum ptychiurum Zipp. ex Kunth; Heterostalis flagelliformis (Lodd.) Schott; Typhonium cuspidatum (Blume) Decne.; Typhonium cuspidatum var. ptychiurum Blume; Typhonium flagelliferum Griff.; Typhonium flagelliforme var. angustissimum Ridl.; Typhonium hastiferum Miq.; Typhonium incurvatum Blatt. & McCann; Typhonium reinwardtianum de Vriese & Miq.; Typhonium sylvaticum Voigt);
Request for Id: Please identify the aroid from flood areas of Assam. It usually grows on damp soil during September- October (after flood), maximum 1′ height, corm very small. Is not it Typhonium divaricatum (L.) Decne?
That would be Typhonium flagelliforme Blume, a plant from semi aquatic habitats that is used in the treatment of cough as well as cancer. I was only aware of it growing wild in S India so it might have been introduced in Assam for its medicinal properties. Very widespread throughout Asia even growing in Australia.