Species Nectar (μg/day) Nectar unit Source species Source
Acer spicatum 77.0 flower (Heinrich 1976)
Achillea millefolium 38.1 capitulum (Holl 1995, Hicks et al. 2016)
Agrimonia gryposepala 1.37 flower A. eupatoria (Baude et al. 2016)
Anthemis arvensis 2880 capitulum (Schultz and Dlugosch 1999)
Asclepias syriaca 1750 flower (Heinrich 1976)
Barbarea vulgaris 158 flower (Holl 1995)
Capsella bursa-pastoris 0.39 flower (Baude et al. 2016)
Cardamine bulbosa 4.50 flower C. spp. (Baude et al. 2016)
Centaurea sp. 1474 capitulum C. nigra (Hicks et al. 2016)
Cerastium fontanum 26.9 flower (Baude et al. 2016)
Citrullus lanatus 12000 flower (Taha and Bayoumi 2009)
Cornus sericea 68.8 flower C. sanguinea (Baude et al. 2016)
Cucurbita sp. (female squash) 30810 flower C. pepo (Vidal et al. 2006)
Daucus carota 7.35 flower (Baude et al. 2016)
Echium vulgare 688 flower (Hicks et al. 2016)
Erigeron philadelphicus 2250 capitulum (Holl 1995)
Euthamia graminifolia 24.0 capitulum (Heinrich 1976)
Fragaria virginiana 42.0 flower (Heinrich 1976)
Galium mollugo 3.58 flower (Baude et al. 2016)
Geum aleppicum 29.8 flower G. urbanum (Baude et al. 2016)
Glechoma hederacea 94.4 flower (Baude et al. 2016)
Leucanthemum vulgare 515 capitulum (Hicks et al. 2016)
Linaria vulgaris 544 flower (Baude et al. 2016)
Lotus corniculatus 61.8 flower (Baude et al. 2016)
Malus pumila 110 flower (Baude et al. 2016)
Malva neglecta 541 flower M. moschata (Hicks et al. 2016)
Medicago lupulina 1.63 flower (Baude et al. 2016)
Medicago sativa 146 flower (Baude et al. 2016)
Oxalis stricta 15.5 flower O. acetosella (Baude et al. 2016)
Phaseolus vulgaris 53.4 flower Cultivated bean (Baude et al. 2016)
Potentilla argentea 23.3 flower Potentilla spp. (Baude et al. 2016)
Prunella vulgaris 139 flower (Baude et al. 2016)
Ranunculus acris 78.8 flower (Baude et al. 2016)
Rubus allegheniensis 894 flower (Holl 1995)
Rubus sp. (raspberry) 1893 flower R. fruticosus agg. (Baude et al. 2016)
Silene vulgaris 251 flower (Baude et al. 2016)
Solanum tuberosum 27.3 flower (Baude et al. 2016)
Solidago canadensis 28.8 capitulum (Heinrich 1976)
Sonchus arvensis 651 capitulum (Baude et al. 2016)
Symphotrichum lanceolatum 1116 capitulum (Chmielewski and Semple 2001)
Taraxacum agg. 2137 capitulum (Hicks et al. 2016)
Trifolium pratense 117 flower (Baude et al. 2016)
Trifolium repens 49.0 flower (Baude et al. 2016)
Veronica serpyllifolia 2.83 flower (Baude et al. 2016)
Vicia cracca 484 flower (Baude et al. 2016)
Viola pubescens 125 flower Viola spp. (Holl 1995, Baude et al. 2016)