Vincetoxicumnakaianum (Asclepiadoideae, Apocynaceae), a new species from Japan for Cynanchummagnificum Nakai, nomen nudum
Mochizuki K, Nemoto S, Murata J and others. PhytoKeys, October 2024.
Read the paper Free to read · doi:10.3897/phytokeys.247.125070
What this paper is about
An erect herb from eastern Honshu had been carried in the literature under a name that was never validly published. This paper gives it a legitimate one, Vincetoxicum nakaianum, with a full description and photographs.
Housekeeping rather than discovery: the plant was known, the name was not.
Summarised here from the abstract below. Not the authors’ words.
Abstract
Vincetoxicum Wolf is the third largest genus in Asclepiadoideae, and 23 species are distributed in Japan. We discovered that an erect herb species, distributed in the eastern part of the Honshu island, was invalidly named Vincetoxicummagnificum (Nakai) Kitag. based on Cynanchummagnificum Nakai, nomen nudum. Therefore, we presently name this species Vincetoxicumnakaianum K.Mochizuki & Ohi-Toma, and we give a detailed description in this study. Additionally, we provide photographs that demonstrate its ecology and diagnostic characteristics.
Abstract reproduced from the published paper, which is licensed CC BY. Copyright remains with the authors.
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Milkweed USA. (2026). Vincetoxicumnakaianum (Asclepiadoideae, Apocynaceae), a new species from Japan for Cynanchummagnificum Nakai, nomen nudum (listing). Retrieved DATE, from https://milkweedusa.com/research/vincetoxicumnakaianum-asclepiadoideae-apocynaceae-a-new-species-from-japan-for-2024/
"Vincetoxicumnakaianum (Asclepiadoideae, Apocynaceae), a new species from Japan for Cynanchummagnificum Nakai, nomen nudum (listing)." Milkweed USA, 2026, https://milkweedusa.com/research/vincetoxicumnakaianum-asclepiadoideae-apocynaceae-a-new-species-from-japan-for-2024/. Accessed DATE.
Milkweed USA. "Vincetoxicumnakaianum (Asclepiadoideae, Apocynaceae), a new species from Japan for Cynanchummagnificum Nakai, nomen nudum (listing)." Last modified 2026-08-01. Accessed DATE. https://milkweedusa.com/research/vincetoxicumnakaianum-asclepiadoideae-apocynaceae-a-new-species-from-japan-for-2024/.
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title = {Vincetoxicumnakaianum (Asclepiadoideae, Apocynaceae), a new species from Japan for Cynanchummagnificum Nakai, nomen nudum (listing)},
author = {{Milkweed USA}},
year = {2026},
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