Yellow hawkweed, Hieracium caespitosum
Family: Asteracae Pollen grain morphology: echinate Pollen grain size: 27.01 + 0.71 µm by 26.36 + 0.1 µm
Common yarrow, Achillea millefolium
Family: Asteracae Pollen grain morphology: echinate, tricolpate Pollen grain size: 24.46 + 1.32 µm by 21.98 + 0.87 µm
Tall hawkweed, Hieracium piloselloides
Family: Asteracae Pollen grain morphology: echinate Pollen grain size: 26.76 + 1.32 µm by 23.39 + 1.6 µm
Common sunflower, Helianthus annuus
Family: Asteracae Pollen grain morphology: spheroidal, tricolporate, echinate, tectate Pollen grain size: 31.34 + 0.41 µm by 29.99 + 0.94 µm
Stinking chamomile, Anthemis cotula
Family: Asteracae Pollen grain morphology: echinate, tricolpate Pollen grain size: 19.85 µm + 0.85 by 16.86 + 1.69 µm
Sow thistle, Sonchus oleraceus
Family: Asteracae Pollen grain morphology: echinate Pollen grain size: 26.07 µm by 26.06 µm
Shaggy soldier, Galinsoga quadriradiata
Family: Asteracae Pollen grain morphology: spheroidal, echinate, tricolporate Pollen grain size: 23.6 µm by 22.06 µm
Salsify, Tragopogon porrifolius
Family: Asteracae Pollen grain morphology: tricolpate, spheroidal, echinolophate Pollen grain size: 39.9 µm by 34.31 µm
Orange hawkweed, Pilosella aurantiaca
Family: Asteracae Pollen grain morphology: echinate Pollen grain size: 25.5 + 0.60 µm by 20.90 + 1.63 µm
Eastern daisy fleabane, Erigeron annuus
Family: Asteracae Pollen grain morphology: echinate, tricolporate Pollen grain size: 17.95 + 0.76 µm by 16.78 + 0.92 µm