A shake of a cluster of Alder catkins releases a cloud of pollen on Feb. 28, 2005. Alder pollen is among the worst of the pollen producers for those who suffer from allergies.
A shake of a cluster of Alder catkins releases a cloud of pollen on Feb. 28, 2005. Alder pollen is among the worst of the pollen producers for those who suffer from allergies. Staff The Bellingham Herald
A shake of a cluster of Alder catkins releases a cloud of pollen on Feb. 28, 2005. Alder pollen is among the worst of the pollen producers for those who suffer from allergies. Staff The Bellingham Herald