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