Short-fringed knapweed, Centaurea nigrescens
Family: Asteracae Pollen grain morphology: tricolporate, echinate, tectate Pollen grain size: 29.24 + 1.57 µm by 26.98 + 0.46 µm
Family: Asteracae Pollen grain morphology: tricolporate, echinate, tectate Pollen grain size: 29.24 + 1.57 µm by 26.98 + 0.46 µm