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Bilder Videos
Alder tree Alnus glutinosa,artwork
11616487 - Alder tree Alnus glutinosa,artwork
Alder tree Alnus glutinosa,artwork
11616486 - Alder tree Alnus glutinosa,artwork
Common alder (Alnus glutinosa) buds
11644354 - Common alder (Alnus glutinosa) buds
Alder (Alnus glutinosa)
11649478 - Alder (Alnus glutinosa)
Alder (Alnus glutinosa)
11631760 - Alder (Alnus glutinosa)
Common alder (Alnus glutinosa) leaf
11646260 - Common alder (Alnus glutinosa) leaf
Alder (Alnus glutinosa) tree,artwork
11648633 - Alder (Alnus glutinosa) tree,artwork
Alder (Alnus glutinosa) tree,artwork
11648632 - Alder (Alnus glutinosa) tree,artwork
Alder (Alnus glutinosa)
11631761 - Alder (Alnus glutinosa)
Uprooted Alder trees (Alnus glutinosa)
11568180 - Uprooted Alder trees (Alnus glutinosa)
Alder (Alnus glutinosa)
11568179 - Alder (Alnus glutinosa)
Alder (Alnus glutinosa)
11561934 - Alder (Alnus glutinosa)
Alder (Alnus glutinosa)
11561933 - Alder (Alnus glutinosa)
Male alder catkins (Alnus glutinosa)
11541132 - Male alder catkins (Alnus glutinosa)
Alder catkins and cones (Alnus glutinosa)
11539425 - Alder catkins and cones (Alnus glutinosa)
Common Alder. (Alnus glutinosa)
11540887 - Common Alder. (Alnus glutinosa)
Sycamore (Alnus glutinosa) leaves
11646268 - Sycamore (Alnus glutinosa) leaves
Common Alder Tree Pollen SEM
11635533 - Common Alder Tree Pollen SEM
Root Nodules
12028857 - Root Nodules
Erle Pollen 4000x - Pollen, Erle
12525981 - Erle Pollen 4000x - Pollen, Erle
Cross-section of alder, polarised light micrograph
12645588 - Cross-section of alder, polarised light micrograph
Section of alder, polarised light micrograph
12645587 - Section of alder, polarised light micrograph
Cross-section of alder, polarised light micrograph
12645586 - Cross-section of alder, polarised light micrograph
Section of alder, polarised light micrograph
12645585 - Section of alder, polarised light micrograph
Tree gnawed by European beaver
12539958 - Tree gnawed by European beaver
Common alder bark
11710229 - Common alder bark
Allergenic pollen (ragweed, sagebrush, timothy, scotch broom
12301458 - Allergenic pollen (ragweed, sagebrush, timothy, scotch broom
Allergenic pollen (ragweed, sagebrush, timothy, scotch broom
12301456 - Allergenic pollen (ragweed, sagebrush, timothy, scotch broom
Drought and water tables
12349848 - Drought and water tables
Common alder tree,illustration
11727881 - Common alder tree,illustration
Allergenic pollen (ragweed, sagebrush, timothy, scotch broom
12301432 - Allergenic pollen (ragweed, sagebrush, timothy, scotch broom
Alder leaves damaged by insects
11687762 - Alder leaves damaged by insects
Frost-covered catkins
11649811 - Frost-covered catkins
Pollarded Alder tree showing regrowth
11630358 - Pollarded Alder tree showing regrowth
European alder leaf
11596245 - European alder leaf
Alder tree pollen grain,SEM
11610690 - Alder tree pollen grain,SEM
Pollarded alder tree
11611689 - Pollarded alder tree
European alder leaf
11593891 - European alder leaf
Alder bead galls
11578782 - Alder bead galls
Logging of an Alder forest
11746770 - Logging of an Alder forest
Cudoniella fungus
11558200 - Cudoniella fungus
Logs of European alder trees
11746772 - Logs of European alder trees
Black alder root nodules
11525053 - Black alder root nodules
Common alder
11541277 - Common alder
Alder sawfly larva (Fenusa dohrnii)
12037782 - Alder sawfly larva (Fenusa dohrnii)
Alder Psyllid (Psylla alni)
12001551 - Alder Psyllid (Psylla alni)
Snow on alder catkins
12648707 - Snow on alder catkins
Young alder leaves
12650867 - Young alder leaves
Young alder leaves
12650872 - Young alder leaves
Snow on alder catkins
12648709 - Snow on alder catkins