Black alder
Alnus glutinosa (L.) Gaertn.
- light
- Sun–part
- water
- Medium
- tall
- 15 m
- wide
- 9.1 m
Betulaceae
Also called Black Alder, Common Alder, European Alder
Formerly Betula glutinosa
When it flowers
JFMAMJJASOND
Not known yet in the tropics: too few flowering observations to read a season from.
PetsNo pet-safety information yet
PeopleNo safety information yet
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- TreeKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- Europe to W. Siberia and IranKew's checklist, not yet checked
- Light
- Full sun to part shade (3 h or more)Read from NC State Extension, one source
- Height
- 12 m to 18 mRead from NC State Extension, one source
- Spread
- 6.1 m to 12 mRead from NC State Extension, one source
- Water
- Average: moist, well drainedRead from NC State Extension, one source
- Flowers
- Red, brownRead from NC State Extension, one source
- Coldest it survives
- -34.4 °C (USDA zone 4a)Read from NC State Extension, one source
Not known yet: heat, hottest it survives.
In other languages (12)
- German
- Schwarzerle, Schwarz Erle, Schwarz-Erle
- Galician
- Amieiro
- Portuguese
- Amieiro
- Catalan
- Vern
- Arabic
- نغت دبق
- Asturian
- umeru
- Azerbaijani
- Adi qızılağac
- Bashkir
- Ҡара ерек
- Belarusian
- Вольха чорная
- Bulgarian
- Черна елша
- Bosnian
- Crna joha
- Corsican
- Alzu
Where this comes from
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- NC State Extension, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY 2.5
- 3D model: Alnus glutinosa (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.