References:
WFO (2023): World Flora Online. Accessed on 22 Dec 2022. URL: http://www.worldfloraonline.org/taxon/wfo-0000410024.
Flowers of India (2023). Accessed on 22 Dec 2022. URL: http://www.flowersofindia.net/catalog/slides/Bengal%20Clock%20Vine.html.
Kawthankar, N. 2024. Thunbergia grandiflora Roxb. – Bengal Clock Vine. In Kunte, K., S. Sondhi, and P. Roy (Chief Editors). Butterflies of India, v. 4.12. Published by the Indian Foundation for Butterflies. URL: https://www.ifoundbutterflies.org/thunbergia-grandiflora, accessed 2024/10/11.