Natural History: A perennial sub-shrub found from India to Indo-china. The name reflects the small white flowers borne on the backside of the leafy spikes. Flowering season is from November to May (Flowers of India, 2022).
Note: Phaulopsis imbricata Sweet does not occur in Indian subcontinent (POWO, 2022 & Manktelow, 1996). Therefore, previously reported records of P. imbricata from India must be P. dorsiflora (BSI, 2022).
Nitin, R., V. C. Balakrishnan, P. V. Churi, S. Kalesh, S. Prakash, and K. Kunte. 2018. Larval host plants of the butterflies of the Western Ghats, India. Journal of Threatened Taxa, 10:11495–11550. DOI: https://doi.org/10.11609/jott.3220.127.116.1195-11550.
WFO (2022): World Flora Online. Accessed on 21 Dec 2022. URL: http://www.worldfloraonline.org/taxon/wfo-0001228936.
Flowers of India (2022). Accessed on 21 Dec 2022. URL: https://www.flowersofindia.net/catalog/slides/Himalayan%20Ruellia.html.
Manktelow, M. (1996). Phaulopsis (Acanthaceae) : a monograph.
POWO (2022): Plants of the World Online. Accessed on 17 Dec 2022. URL: https://powo.science.kew.org/taxon/331849-2.
BSI (2022): Botanical Survey of India. Accessed on 21 Dec 2022. URL: https://efloraindia.bsi.gov.in/eFlora/speciesDesc_PCL.action?species_id=24678.
Kawthankar, N. 2023. Phaulopsis dorsiflora (Retz.) Santapau – Himalayan Ruellia. 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/phaulopsis-dorsiflora, accessed 2023/12/01.