Garlic mustard, Allaria petiolata Family: Brassicaceae Pollen grain morphology: reticulate, tricolporate Pollen grain size: 25.17 ± 1.08 µm by 22.25 ± 1.25 µm July 27, 2015brassicaceaeallaria, alliara, brassicaceae, mustard, petiolata, reticulate, tricolporate