Alnus hirsuta(Spach) Rupr.

Manchurian alderSiberian alder

WFO wfo-0000945674 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Alnus hirsuta, photographed by Валерия Ковалева
fig. a Валерия Ковалева, CC BY 4.0 / 2022-05-22 / obs. 199568559
Alnus hirsuta, photographed by Анна Васильченко
fig. b Анна Васильченко, CC BY 4.0 / obs. 156666432
Alnus hirsuta, photographed by Nina Filippova
fig. c Nina Filippova, CC BY 4.0 / obs. 152901958
Alnus hirsuta, photographed by Nina Filippova
fig. d Nina Filippova, CC BY 4.0 / obs. 152895629
Alnus hirsuta, photographed by Nina Filippova
fig. e Nina Filippova, CC BY 4.0 / obs. 152899509
Alnus hirsuta, photographed by Анна Васильченко
fig. f Анна Васильченко, CC BY 4.0 / obs. 135231960
Alnus hirsuta, photographed by Oleg Kosterin
fig. g Oleg Kosterin, CC BY 4.0 / obs. 91209312
Alnus hirsuta, photographed by Николай Соболев
fig. h Николай Соболев, CC BY 4.0 / obs. 108737901

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 13 botanical countries

Regions where Alnus hirsuta is native: Amur, Buryatiya, Chita, Inner Mongolia, Japan, Kamchatka, Khabarovsk, Korea, Magadan, Manchuria, Primorye, Sakhalin, Yakutiya AmurBuryatiyaChitaInner MongoliaJapanKamchatkaKhabarovskMagadanManchuriaPrimoryeSakhalinYakutiya Korea
Native distribution of Alnus hirsuta, 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
Buryatiya BRY
Chita CTA
Inner Mongolia CHI
Japan JAP
Kamchatka KAM
Khabarovsk KHA
Korea KOR
Magadan MAG
Manchuria CHM
Primorye PRM
Sakhalin SAK
Yakutiya YAK

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 33 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.

  • Alnus hirsuta f. inokumae (Murai & Kusaka) H.Ohba
  • Alnus hirsuta f. macrophylla Callier
  • Alnus hirsuta f. sibirica (Spach) H.Ohba
  • Alnus hirsuta var. microphylla (Nakai) Tatew.
  • Alnus hirsuta var. sibirica (Spach) C.K.Schneid.
  • Alnus incana f. hirsuta Regel
  • Alnus incana subsp. hirsuta (Spach) Á.Löve & D.Löve
  • Alnus incana subsp. tchangbokii Chin S.Chang & H.Kim
  • Alnus incana var. glauca Regel
  • Alnus incana var. glauca (F.Michx.) Loudon
  • Alnus incana var. hirsuta Spach
  • Alnus incana var. sibirica Spach
  • Alnus incana var. tinctoria (Sarg.) H.J.P.Winkl.
  • Alnus inokumae Murai & Kusaka
  • Alnus sibirica Fisch. ex Turcz.
  • Alnus sibirica (Spach) Turcz. ex Kom.
  • Alnus sibirica f. acutiloba Koidz.
  • Alnus sibirica f. glabra (Callier) Koidz.
  • Alnus sibirica f. hirsutoides Koidz.
  • Alnus sibirica f. obtusiloba Koidz.
  • Alnus sibirica var. hirsuta (Spach) Koidz.
  • Alnus sibirica var. oxyloba C.K.Schneid.
  • Alnus sibirica var. paucinervis C.K.Schneid.
  • Alnus sibirica var. tinctoria (Sarg.) Koidz.

and 9 more.

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. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. 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.