Pollen count for the region Groningen
poplar
willow
beech
plantain
oak
mugwort
ragweed
hazel
grasses
birch
rye
rumex
alder
poplar
willow
beech
plantain
oak
mugwort
ragweed
hazel
grasses
birch
rye
rumex
alder
poplar
willow
birch
beech
plantain
oak
mugwort
ragweed
hazel
grasses
rye
rumex
alder
poplar
willow
birch
beech
plantain
oak
mugwort
ragweed
hazel
grasses
rye
rumex
alder
poplar
birch
willow
beech
plantain
oak
mugwort
ragweed
hazel
grasses
rye
rumex
alder
poplar
willow
birch
beech
plantain
oak
mugwort
ragweed
hazel
grasses
rye
rumex
alder
poplar
willow
birch
beech
plantain
oak
mugwort
ragweed
hazel
grasses
rye
rumex
alder
