Dixit, S. N., and S. M. Tripathi. “Occurrence of <I>Helminthostachys zeylanica< I> Hook. In Lakshmipur Forest (Gorakhpur)”. Indian Forester 92, no. 4 (April 1, 1966): 275–277. Accessed December 4, 2025. http://indianforester.co.in/index.php/indianforester/article/view/25350.