Blackberry, Rubus spp. Family: Rosaceae Pollen grain morphology: tricolpate, subprolate, tectate Pollen grain size: 29.9 ± 0.51 μm by 27.76 ± 0.19 µm May 1, 2015rosaceae, Uncategorizedblackberry, rosaceae, rubus, subprolate, tectate, tricolpate