Alnus incana - US Forest Service
www.fs.fed.us › database › feisEuropean gray alder, Alnusincana(L.) Moench subsp. incana, is native to western Europe [120,127]. It has been introduced in the northeastern United States [231]. Since variation in the subspecies is continuous rather than discrete, gray alder subspecies are sometimes difficult to tell apart ([127], review by [143]).
Gråor – Wikipedia
https://no.wikipedia.org/wiki/GråorGråor eller gråolder (Alnus incana) er et løvtre av oreslekta innenfor bjørkefamilien. Den kan på god jord bli opptil 20 meter høy med stamme og kjegleforma krone. På fattigere jord eller myrjord vokser den ofte buskaktig. Gråora har glatt grå eller lysegrå bark med et grønt skjær. Eldre bark kan få noen dype furer nederst på stammen. Vinterknoppene er purpurrøde, skuddene er rø…
Alnus incana - Wikipedia
en.wikipedia.org › wiki › Alnus_incanaAlnus incana is a light-demanding, fast-growing tree that grows well on poorer soils. In central Europe, it is a colonist of alluvial land alongside mountain brooks and streams, occurring at elevations up to 1,500 metres (4,900 ft). However, it does not require moist soil, and will also colonize screes and shallow stony slopes.