Pollen and Mold Center
Willow Family (Salicaceae Family) - POPLAR
Get readings about Willow and
Willow (Salix) and Poplar (Populus)
Tree pollen is dominant in the spring.
Willow pollen season extends from March to June.
Poplar pollen season extends from February to June.
Willow and Poplar trees in Missouri:
- White Willow (Salix alba)
- Weeping Willow (Salix babylonica)
- Pussy Willow (Salix discolor)
- Crack Willow (Salix fragilis)
- Black Willow (Salix nigra)
- White Poplar (Populus alba)
- Eastern or Common Cottonwood (Populus deltoides)
- Lombardy Poplar (Populus nigra)
- European Aspen (Populus tremula)
Facts about Willow and Poplar
Willow and Poplar allergenicity
- Willows flower in March and April. They are mainly insect-
pollinated. It is not a strong
- Poplars, aspens, and cottonwoods are entirely wind-pollinated. These
mildly allergenic trees
bloom in April and May.