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Impatiens cuspidifera Hook.f., a little-known species from Northeast India, was first described by J.D. Hooker in 1905. Nearly after 70 years, it is recollected from Kohima (Nagaland). The species is reinstated here with detailed description from live specimens, along with photographs, distribution, habitat, to aid proper identification. A comparison with closely related species is also included, supported by photographs.
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Mondal et al. (2025) studied this question.
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