Vicia unijugaA.Braun

WFO wfo-0001055306 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Vicia unijuga, photographed by Екатерина Гущина
fig. a Екатерина Гущина, CC BY 4.0 / 2022-06-09 / obs. 204666430
Vicia unijuga, photographed by Oleg Kosterin
fig. b Oleg Kosterin, CC BY 4.0 / obs. 165971317
Vicia unijuga, photographed by Alexander Dubynin
fig. c Alexander Dubynin, CC BY 4.0 / obs. 157074796
Vicia unijuga, photographed by Alexander Dubynin
fig. d Alexander Dubynin, CC BY 4.0 / obs. 157078631
Vicia unijuga, photographed by Alexander Dubynin
fig. e Alexander Dubynin, CC BY 4.0 / obs. 157082020
Vicia unijuga, photographed by Aleksei Baushev
fig. f Aleksei Baushev, CC BY 4.0 / obs. 158415630
Vicia unijuga, photographed by Nina Filippova
fig. g Nina Filippova, CC BY 4.0 / obs. 153453879
Vicia unijuga, photographed by Nina Filippova
fig. h Nina Filippova, CC BY 4.0 / obs. 153474722

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 23 botanical countries

Regions where Vicia unijuga is native: Altay, Amur, Buryatiya, China North-Central, China South-Central, China Southeast, Chita, Inner Mongolia, Irkutsk, Japan, Khabarovsk, Korea, Krasnoyarsk, Kuril Is., Manchuria, Mongolia, Primorye, Qinghai, Sakhalin, Tibet, Tuva, West Siberia, Yakutiya AltayAmurBuryatiyaChina North-CentralChina South-CentralChina SoutheastChitaInner MongoliaIrkutskJapanKhabarovskKrasnoyarskManchuriaMongoliaPrimoryeQinghaiSakhalinTibetTuvaWest SiberiaYakutiya Korea
Native distribution of Vicia unijuga, 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
Altay ALT ASIA-TEMPERATE
Amur AMU
Buryatiya BRY
China North-Central CHN
China South-Central CHC
China Southeast CHS
Chita CTA
Inner Mongolia CHI
Irkutsk IRK
Japan JAP
Khabarovsk KHA
Korea KOR
Krasnoyarsk KRA
Kuril Is. KUR
Manchuria CHM
Mongolia MON
Primorye PRM
Qinghai CHQ
Sakhalin SAK
Tibet CHT
Tuva TVA
West Siberia WSB
Yakutiya YAK

Not drawn on the map: Kuril Is.. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

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 21 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.

  • Ervum unijugum (A.Braun) Alef.
  • Lathyrus messerschmidii Franch. & Sav.
  • Orobus lathyroides L.
  • Orobus lathyroides var. turczaninovii Regel
  • Vicia austro-higoensis Honda
  • Vicia linearifolia Y.N.Lee
  • Vicia unijuga f. albiflora Nakai
  • Vicia unijuga f. angustifolia (Makino) Ohwi
  • Vicia unijuga f. latifolia Nakai
  • Vicia unijuga f. minor (Nakai) Nakai
  • Vicia unijuga f. trifoliolata (Z.D.Xia) Y.Endo & H.Ohashi
  • Vicia unijuga subsp. minor (Nakai) Y.N.Lee
  • Vicia unijuga var. angustifolia Nakai
  • Vicia unijuga var. angustifolia Makino
  • Vicia unijuga var. austrohigoensis (Honda) Sugim. ex Yonek.
  • Vicia unijuga var. breviramea Nakai
  • Vicia unijuga var. kausanensis H.Lév.
  • Vicia unijuga var. minor Nakai
  • Vicia unijuga var. trifoliolata Z.D.Xia
  • Vicia unijuga var. ulsaniana M.Kim & H.Jo
  • Vicia unijuga var. waldeniana S.Y.Hu

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.