alder
alnus glutinosa
background
betulaceae
black alder
blooming
blossom
botanical
botany
branch
branches
brown
catkins
close up
common alder
deciduous
dyeing
environment
european alder
flora
folk medicine
fruit
green
in bloom
inflorescence
leaf
nature
outdoor
paper manufacture
plant
pollen allergy
public park
season
sky
smoked foods
spring
springtime
tanning
tree
wood