Isodon excisus(Maxim.) Kudô

WFO wfo-0000217853 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Isodon excisus, photographed by Nina Filippova
fig. a Nina Filippova, CC BY 4.0 / 2021-09-01 / obs. 155713570
Isodon excisus, photographed by Nina Filippova
fig. b Nina Filippova, CC BY 4.0 / obs. 155657305
Isodon excisus, photographed by Nina Filippova
fig. c Nina Filippova, CC BY 4.0 / obs. 155646168
Isodon excisus, photographed by Nina Filippova
fig. d Nina Filippova, CC BY 4.0 / obs. 153463103
Isodon excisus, photographed by Nina Filippova
fig. e Nina Filippova, CC BY 4.0 / obs. 153297084
Isodon excisus, photographed by Nina Filippova
fig. f Nina Filippova, CC BY 4.0 / obs. 152921672
Isodon excisus, photographed by Nina Filippova
fig. g Nina Filippova, CC BY 4.0 / obs. 152895762
Isodon excisus, photographed by Nina Filippova
fig. h Nina Filippova, CC BY 4.0 / obs. 152902522

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 6 botanical countries

Regions where Isodon excisus is native: Amur, China North-Central, Khabarovsk, Korea, Manchuria, Primorye AmurChina North-CentralKhabarovskManchuriaPrimorye Korea
Native distribution of Isodon excisus, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Amur AMU ASIA-TEMPERATE
China North-Central CHN
Khabarovsk KHA
Korea KOR
Manchuria CHM
Primorye PRM

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 11 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Amethystanthus excisus (Maxim.) Nakai
  • Amethystanthus excisus f. albiflorus Sakata
  • Amethystanthus excisus var. chiisanensis Nakai
  • Amethystanthus excisus var. coreanus Nakai
  • Isodon excisus f. albiflorus (Sakata) H.Hara
  • Plectranthus excisus Maxim.
  • Rabdosia excisa (Maxim.) H.Hara
  • Rabdosia excisa f. albiflora (Sakata) H.Hara
  • Rabdosia excisa var. chiisanensis (Nakai) Murata
  • Rabdosia umbrosa var. coreana Y.N.Lee
  • Stachys polygonatum H.Lév.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.