“An Overlooked Weed ‘Purpletop Vervain’ Verbena Incompta P. W. Michael (Verbenaceae) Forms a New Record to the Flora of India”.
Indian Journal of Plant Genetic Resources, vol. 36, no. 01, Apr. 2023, pp. 56-61,
https://doi.org/10.5958/0976-1926.2023.00036.1.08.