英文關鍵字
alder
alnus
black
bloom
blooming
blossom
bokeh
branches
buds
catkin
catkins
close
cold
early
fertilization
flora
flower
flowers
forest
frost
garden
green
hanging
macro
male
nature
outdoors
outside
plant
pollen
pollination
reproduction
season
seeds
sexual
spring
strobile
time
tree
twigs
wind
windpollinated
winter
woods
yellow