Abstract
Two names, Impatiens hirta L. Joseph & Bhaskar and I. mohana Ratheesh, Sujana & Anil., independently published in 2012 from the Wayanad district in the southern Western Ghats, India, are shown to represent the same species. Examination of the protologues, type material, additional herbarium specimens, and live populations revealed no consistent morphological differences between the two taxa. In accordance with the principle of priority under Article 11.4 of the ICN, the later-published name is here reduced to heterotypic synonymy.
References
- Arnott, G.A.W. (1835) New species of Indian Balsamineae. Companion to the Botanical Magazine 1: 320–325.
- Bhaskar, V. (2012) Taxonomic Monograph on Impatiens L. (Balsaminaceae) of Western Ghats, South India: The Key Genus for Endemism. Centre for plant taxonomic studies, Bangalore, 283 pp.
- Hooker, J.D. & Thomsom, T. (1859) Præcursores ad floram Indicam: Balsamineæ. Botanical Journal of the Linnean Society 4: 106–157. https://doi.org/10.1111/j.1095-8339.1859.tb01160.x
- Linnaeus, C. (1753) Species Plantarum. Vol. 2. Salvius, Stockholm, 937 pp.
- Narayanan, M.K.R., Sujana, K.A., Balakrishnan, V., Meera, R.R. & Anil Kumar, N. (2012) Impatiens mohana (Balsaminaceae), a new scapigerous balsam from Wayanad, Western Ghats, India. Edinburgh Journal of Botany 69 (2): 281–285. https://doi.org/10.1017/S096042861200008X
- POWO (2026) Plants of the World Online. Available from: https://powo.science.kew.org/ (accessed 1 January 2026)
- Prabhukumar, K.M., Hareesh, V.S., Gogoi, R. & Sabu, M. (2022) Family Balsaminaceae: Indian scenario. In: Seethalakshmi, K.K., Haridasan, K., Nair, M.C. & Rekha, V.A. (Eds.) Conspectus of Realms of Biodiversity: Commemorative Volume to Prof. R. Vasudevn Nair. Vibha, Palakkad, pp. 151–184.
- Ravichandran, V., Murugesan, M., Tharani, R., Karthik, B. & Premkumar, M. (2023) Impatiens neo-orchioides, a striking new balsam (Balsaminaceae: Scapigerae) from Nilgiri Biosphere Reserve, Western Ghats, India. Taiwania 68 (2): 161–165.
- Richard, P.S.S. & Ravichandran, V. (2023) Impatiens karuppusamyi (Balsaminaceae), a new species from southern Western Ghats, India. Annales BotaniciFennici 60 (1): 131–135. https://doi.org/10.5735/085.060.0121
- Satheshkumar, C., Diksha, K., Ujwala, S.K., Rana, T.S. & Prabhukumar, K.M. (2025) Impatiens linnaei (Balsaminaceae), a new species from the southern Western Ghats, India. Nordic Journal of Botany 2025: e04569. https://doi.org/10.1111/njb.04569
- Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (2025) International Code of Nomenclature for algae, fungi, and plants (Madrid Code) adopted by the Twentieth International Botanical Congress Madrid, Spain, 2024. Regnum Vegetabile 169. Glashütten: Koeltz Botanical Books.