European Alder Collection

Alnus glutinosa (Willd. ) XXI 4, alder
An illustration of alder tree fruit and foliage from the Natural History Museum Botany Library Plate Collection

Alnus glutinosa (W. ) DCXXXI, alder
An illustration of an alder tree, fruit and foliage from the Natural History Museum Botany Library Plate Collection

Redpoll (Carduelis flammea) male landing on Alder (Alnus glutinosa) Surrey, England. February

Alder (Alnus glutinosa) tree silhouetted by a display of Aurora borealis in the night sky, Cairngorms National Park, Scotland, UK. February

Alnus glutinosa, the common alder, black alder, European alder or just alder
Illustration of a Alnus glutinosa, the common alder, black alder, European alder or just alder

Alder (Alnus glutinosa) wood with bluebells (Hyacinthoides non-scripta) Multiple exposure. Argyll, Scotland

Frozen trees in sunlight
Frozen Common alder (Alnus glutinosa) trees in sunlight; Bavaria, Germany

Silhouetted alder tree at sunrise along the water
Common alder or European black alder (Alnus glutinosa) tree along the water at sunrise; Bavaria, Germany

Silhouetted alder tree at sunrise reflected in water
Common alder or European black alder (Alnus glutinosa) tree reflected in water at sunrise; Bavaria, Germany

Betulaceae - Black or European alder Alnus glutinosa, illustration
Botany - Trees - Betulaceae - Black or European alder (Alnus glutinosa), illustration

Black alder, European alder -Alnus glutinosa- covered with hoarfrost, Swabian Alps, Baden-Wuerttemberg, Germany, Europe

Black Alders -Alnus glutinosa- with spring foliage, Beerbach, Middle Franconia, Bavaria, Germany

Alder (Alnus glutinosa) tree, artwork C016 / 3384
Alder (Alnus glutinosa) tree. Artwork of an alder (Alnus glutinosa) tree (left), with a close-up showing its leaves, and male (long) and female (dark, round) catkins (flowers)

Alder (Alnus glutinosa) tree, artwork C016 / 3383
Alder (Alnus glutinosa) tree. Artwork of an alder (Alnus glutinosa) tree (left), with a close-up showing its leaves, and male (long) and female (dark, round) catkins (flowers)

Alder tree pollen grain, SEM
Alder tree pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from an alder tree (Alnus glutinosa). A pollen grain contains a male sex cell from a flowering plant

Alnus glutinosa, alder tree
A mature alder tree in winter photographed by Pat Hart

Alnus glutinosa, alder
Alder trees in winter photographed by Pat Hart

European alder leaf
European alder (Alnus glutinosa) leaf. This rapid-growing tree is often found beside water. It reaches heights of 20 metres and can live for up to 150 years. Photographed in Dorset, UK, in April

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The European Alder (Alnus glutinosa) is a versatile and captivating tree that can be found across various regions of Europe. Also known as the common alder, black alder, or just alder, this species holds great ecological importance. With its scientific name Alnus glutinosa (Willd. ) XXI 4 or Alnus glutinosa (W. ) DCXXXI, the European Alder showcases its unique characteristics. Its distinct silhouette against the mesmerizing display of Aurora borealis in Cairngorms National Park, Scotland during February creates an enchanting sight. In Surrey, England, a male Redpoll bird gracefully lands on an Alder tree branch. This interaction between nature's creatures and this magnificent tree exemplifies the interconnectedness of ecosystems. During springtime in Beerbach, Middle Franconia Bavaria, Germany; Black Alders -Alnus glutinosa- adorned with fresh foliage create a vibrant scene. Their leaves provide shelter for numerous organisms while adding beauty to their surroundings. The wood of the European Alder has been used for various purposes throughout history. In one image captured through multiple exposures, bluebells delicately adorn a piece of Alder wood showcasing its natural elegance and versatility. Even in freezing conditions like those found in Swabian Alps Baden-Wuerttemberg Germany; hoarfrost covers every inch of the Black Alder trees -Alnus glutinosa-. This resilience demonstrates how this species adapts to different climates and thrives even under harsh circumstances. At sunrise along calm waters or reflected within them, silhouetted alder trees create breathtaking reflections that evoke tranquility and serenity. These scenes remind us to appreciate nature's wonders and find solace amidst our busy lives. Illustrations depicting Betulaceae - Black or European alders Alnus glutinosa showcase their botanical features with precision and detail.