Table 3.
Taxa of plants identified in the pollen collected by honey bees during 2015
| Plant taxaa | % of each pollen type (mean ± SE) by weight | |
|---|---|---|
| High cultivation | Low cultivation | |
| Triflolium repens | 42.13 ± 10.66 | 34.38 ± 15.84 |
| Trifolium pretense | 24.66 ± 10.08 | 32.39 ± 8.64 |
| Chamaecrista fasciculate b | 24.37 ± 8.44 | 26.77 ± 12.11 |
| Solidago spp.b | 3.10 ± 1.69 | 2.10 ± 0.85 |
| Circium vulgare | 2.15 ± 1.43 | 0.87 ± 0.38 |
| Lotus corniculatus | 0.90 ± 0.86 | 0.13 ± 0.13 |
| Helianthus, Heliopsis, Silphium spp.b | 0.63 ± 0.41 | 0.27 ± 0.19 |
| Sambucus canadensis | 0.59 ± 0.59 | 0 |
| Ambrosia spp. | 0.30 ± 0.10 | 0.64 ± 0.39 |
| Melilotus spp. | 0.14 ± 0.14 | 0.81 ± 0.81 |
| Dalea purpurea b | 0.13 ± 0.11 | 0.05 ± 0.05 |
| Zea mays | 0.06 ± 0.06 | 0.18 ± 0.18 |
| Saponaria officinalis | 0 | 0.29 ± 0.29 |
| Ratibida pinnata b,c | 0 | 0 |
| Phlox paniculat b | 0 | 0.24 ± 0.24 |
| Unknown taxaa | 0.82 ± 0.43 | 0.87 ± 0.44 |
aIn total, 18 unrecognized pollen types were combined into ‘unknown taxa’, but % of each unrecognized pollen type was informed in Supp Table 1 (online only). Pollen types were arranged in the order of high to low percentage of simple landscape.
bNative plants.
cPollen was less than < 0.01%.