Alnus japonica Alder Catkins and Cones

Pictured here are male catkins of an Alnus japonica elder tree together with female cones. The male catkins comprise many flowers, which produce pollen to pollinate female catkins. Once pollinated, the female catkins develop into woody false cones as seen here. In the autumn the scales of the cones open and disperse their seeds. Male catkins of this species are among the favorite foods of Pteromys volans orii flying squirrels.

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Filename: alnus-japonica-alder-catkins-and-cones-japan-202103-5473.tif
Copyright: Copyright Tony Wu. All rights reserved. No duplication, reproduction or usage without prior written permission.
Image Size: 8256x5504 / 130.2MB; https://www.photoshelter.com/support/license#rm; https://www.tony-wu.com/contact-tony-wu; Plant Japanese Alder Plantae Tracheophyta Magnoliopsida Fagales Betulaceae Alnus japonica East Asian Alder Han-no-ki Catkin Cone Pacific Japan Hokkaido
Contained in galleries: Flying Squirrels, Japan

Pictured here are male catkins of an Alnus japonica elder tree together with female cones. The male catkins comprise many flowers, which produce pollen to pollinate female catkins. Once pollinated, the female catkins develop into woody false cones as seen here. In the autumn the scales of the cones open and disperse their seeds. Male catkins of this species are among the favorite foods of Pteromys volans orii flying squirrels.