Pollen count for the region Watford
oak
birch
ash
nettle
hazel
grasses
elm
yew
willow
poplar
plantain
mugwort
rumex
alder
oak
birch
ash
nettle
hazel
grasses
yew
willow
poplar
plantain
mugwort
elm
rumex
alder
oak
birch
ash
nettle
hazel
grasses
yew
willow
poplar
plantain
mugwort
elm
rumex
alder
oak
birch
ash
nettle
hazel
grasses
yew
willow
poplar
plantain
mugwort
elm
rumex
alder
oak
birch
ash
nettle
hazel
grasses
yew
willow
poplar
plantain
mugwort
elm
rumex
alder
oak
birch
ash
nettle
hazel
grasses
willow
poplar
plantain
mugwort
elm
yew
rumex
alder
oak
birch
ash
nettle
hazel
grasses
willow
poplar
plantain
mugwort
elm
yew
rumex
alder
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