Greater celandine, Chelidonium majus Family: Papaveraceae Pollen grain morphology: tricolporate reticulate Pollen grain size: 24.69 ± 1.39 µm by 22.93 ± 2.15 µm July 27, 2015papaveraceaecelandine, chelidonium, papaveraceae, reticulate, tricolporate