Silver birch (Betula pendula Ehrh.)
The defined stage of leaf appearance
The buds have flushed and the green of the new leaves are clearly visible.
After the defined stages of leaf appearance
The new leaves are unfolded and the leaf blade is fully visible
Photos: Eija Matikainen
Flowering in silver birch
The flowers of male (staminate) inflorescence (hanging catkins) are open and begin to release yellow pollen.
(On windy days the release of pollen is visible).
Photo: Teijo Nikkanen