Liatrus ligulistylis: meadow blazingstar
Krascheninnikovia lanata
Kochia scoparia: fireweed
Ipomopsis spicata: spiked gilia
Helianthella uniflora
Lilac, Syringa vulgaris
Family: Oleaceae Pollen grain morphology: reticulate, tricolporate Pollen grain size: 22.77 ± 0.32 µm by 20.88 ± 0.90 µm
Golden alexander, Zizia aurea
Family: Apiaceae Pollen grain morphology: Rugulate, striate, tricolporate Pollen grain size: 22.05 ± 1.33 µm by 14.76 ± 0.51 µm
Yellow wood sorrel, Oxalis stricta
Family: Oxalidaceae Pollen grain morphology: tricolporate, spherical, tectate Pollen grain size: 32.35 µm by 30.93 µm
Yellow sweet clover, Melilotus officinalis
Family: Fabaceae Pollen grain morphology: tricolporate, tectate Pollen grain size: 24.47 ± 0.58 µm by 18.48 ± 0.42 µm