Broadleaf plantain, Plantago major Family: Plantaginaceae Pollen grain morphology: spheroidal, verrucate, periporate Pollen grain size: 20.67 ± 1.73 µm by 18.44 ± 1.97 µm June 10, 2015plantaginaceae, Uncategorizedmajor, periporate, plantaginaceae, plantago, plantain, spheroidal, verrucate