alder tree
ament
amentulum
amentum
april
birch
blooming
blossom
blue
botany
branch
brown
catkin
catkins
closeup
dark
environment
european filbert
flower
flowering
forest
gray
hazel wood
nature
new
nut tree
outdoors
plant
season
selective focus
spring
springtime
sun
sunlight
sunny
tails
tree
weather
winter
yellow