Naithani, H. B., P. K. Verma, and Anup Chandra. 2019. “<i>Henckelia urticifolia< i> (Buch.-Ham. Ex D. Don) A.Dietr.- An Addition to the Flora of Uttarakhand”. Indian Forester 145 (4):398-99. https://doi.org/10.36808/if/2019/v145i4/145137.