Common groundsel, Senecio vulgaris Family: Asteracae Pollen grain morphology: spheroidal, echinate, tricolporate Pollen grain size: 26.79 + 0.71 µm by 24.51 + 1.29 µm April 28, 2015Asteraceae, Uncategorizedasteracae, echinate, groundsel, senecio, spheroidal, tricolpate, vulgaris