Bombus griseocollis De Geer: Apidae (Bombini), Hymenoptera
(observations are from Robertson, Betz et al., Graenicher, Reed, Mitchell, Williams, and Clinebell & Bernhardt, Clinebell, Bernhardt, Macior, Schemske et al., Iltis, Luer, Willson & Bertin, Reader, and Daly)
Acanthaceae: Justicia americana sn fq (Rb); Anacardiaceae: Rhus copallina [pist sn] (Rb), Rhus glabra [stam sn cp] (Rb); Apiaceae: Eryngium yuccifolium sn (Rb), Pastinaca sativa sn (Rb), Taenidia integerrima sn (Rb), Zizia aurea sn (Rb); Asclepiadaceae: Asclepias hirtella [plpr sn fq] (Rb, Btz), Asclepias incarnata [plpr sn fq] (Rb, Btz), Asclepias meadii [plup sn] (Btz), Asclepias purpurascens [plab sn] (Rb), Asclepias sullivanti [plpr sn fq] (Rb), Asclepias syriaca [plpr sn] (Rb), Asclepias verticillata [plpr sn fq] [plup sn] (Rb, Btz, WB), Asclepias viridiflora [plup sn fq] (Rb, Btz); Asteraceae: Ageratina altissima sn (Gr), Arctium lappa sn cp (Gr), Aster laevis sn (Gr), Aster lanceolatus sn cp (Gr, Re), Aster lateriflorus sn (Gr), Aster novae-angliae sn (Rb, Gr), Aster pilosus sn (Rb), Aster salicifolius sn (Rb), Bidens aristosa sn fq (Rb), Bidens cernua sn (Rb), Chrysopsis villosa (Re), Cirsium altissimum sn (Gr), Cirsium arvense sn cp (Gr), Cirsium discolor sn (Rb, Re), Cirsium vulgare sn fq (Rb), Echinacea pallida (Cl), Echinacea purpurea sn fq (Rb, Cl), Erigeron philadelphicus sn (Rb), Erigeron pulchellus sn (Mc), Eupatorium perfoliatum sn (Rb), Eupatorium serotinum sn (Rb), Euthamia graminifolia sn (Rb, Gr), Helenium autumnale sn (Rb, Gr), Helianthus annuus sn fq (Rb), Helianthus divaricatus sn (Rb), Helianthus giganteus sn (Gr), Helianthus grosseserratus sn (Rb), Helianthus pauciflorus sn (Rb, Re), Helianthus strumosus sn (Rb, Gr), Helianthus tuberosus sn (Rb, Re), Heliopsis helianthoides (Re), Krigia biflora sn (Rb), Liatris aspera (Re), Liatris punctata (Re), Liatris pycnostachya sn fq (Rb, Cl), Liatris spicata sn cp (Gr), Oligoneuron rigidum (Re), Pyrrhopappus carolinianus cp (Da), Ratibida pinnata sn cp (Gr, Re), Rudbeckia hirta (Re), Rudbeckia laciniata sn cp (Rb, Gr), Rudbeckia triloba sn fq (Rb), Silphium laciniatum sn (Rb), Silphium perfoliatum sn (Rb), Solidago nemoralis (Re), Solidago speciosa (Re), Verbesina alternifolia sn (Rb), Vernonia fasciculata sn (Rb); Balsaminaceae: Impatiens capensis sn (Gr); Berberidaceae: Caulophyllum thalictroides sn (Rb), Podophyllum peltatum sn (Rb); Boraginaceae: Lithospermum canescens sn (Mc), Mertensia virginica sn (Rb), Onosmodium molle (Wm); Brassicaceae: Arabis shortii sn (Rb), Dentaria laciniata sn (Rb, Shm); Caesalpiniaceae: Chamaecrista fasciculata [flwr cp fq] (Rb), Gleditsia triacanthos sn cp (Rb); Campanulaceae: Campanulastrum americanum sn (Rb), Lobelia siphilitica sn (Rb, Mc), Lobelia spicata sn (Rb), Triodanis perfoliata sn (Rb); Caprifoliaceae: Symphoricarpos orbiculatus sn (Rb), Viburnum dentatum sn (Rb); Commelinaceae: Tradescantia ohiensis cp (Rb), Tradescantia virginiensis cp (Rb); Convolvulaceae: Ipomoea pandurata sn (Rb); Cornaceae: Cornus florida sn (Rb), Cornus obliqua sn (Rb); Ebenaceae: Diospyros virginiana [stam sn cp] (Rb); Ericaceae: Vaccinium macrocarpon (Rd); Fabaceae: Amorpha canescens sn (Rb, Re), Astragalus canadensis sn (Rb), Astragalus crassicarpus trichocalyx sn (Rb), Baptisia leucophaea sn (Rb), Cercis canadensis sn cp (Rb), Dalea candida sn fq (Rb), Dalea purpurea sn cp fq (Rb, Re), Dalea villosa (Re), Desmodium canadense cp (Rb), Melilotus alba sn fq (Rb), Orbexilum onobrychis sn cp fq (Rb), Robinia pseudoacacia sn (Rb), Trifolium pratense sn cp fq (Rb, Mc), Trifolium repens sn cp (Rb); Fumariaceae: Dicentra canadensis fq (Shm), Dicentra cucullaria sn fq (Rb, Shm); Gentianaceae: Frasera caroliniensis sn fq (Rb); Geraniaceae: Geranium maculatum sn (Rb); Grossulariaceae: Ribes americanum sn (Gr), Ribes cynosbati sn (Gr), Ribes missouriense sn (Rb); Hippocastanaceae: Aesculus glabra sn (Rb), Aesculus hippocastanum sn fq (Rb); Hydrangeaceae: Hydrangea arborescens cp fq (Rb); Hydrophyllaceae: Hydrophyllum appendiculatum sn cp fq (Rb), Hydrophyllum virginianum sn fq (Rb); Hypericaceae: Hypericum sphaerocarpum cp fq (Rb); Iridaceae: Iris versicolor shrevei sn (Rb), Sisyrinchium angustifolium sn (Rb); Lamiaceae: Agastache foeniculum (Re), Agastache nepetoides sn cp fq (Rb), Blephilia ciliata sn (Rb), Blephilia hirsuta sn fq (Rb), Marrubium vulgare sn (Rb), Monarda bradburiana sn fq (Rb, Cl), Monarda fistulosa sn fq (Rb, Re, Cl), Nepeta cataria sn fq (Rb), Prunella vulgaris sn (Rb), Pycnanthemum tenuifolium sn cp fq (Rb), Pycnanthemum virginianum sn (Rb, Re), Scutellaria incana sn (Rb), Stachys palustris (Re), Teucrium canadense sn fq (Rb); Liliaceae: Allium canadense (Re), Camassia scilloides sn (Rb), Uvularia grandiflora sn (Rb); Lythraceae: Lythrum alatum sn (Rb); Malvaceae: Abutilon theophrastii sn cp fq (Rb), Hibiscus lasiocarpos sn (Rb), Napaea dioica fq (Ilt); Mimosaceae: Schrankia nuttallii cp fq (Bht); Nelumbonaceae: Nelumbo lutea exp np (Rb); Orchidaceae: Calopogon tuberosus exp (Lu), Galearis spectabilis sn (Rb); Papaveraceae: Sanguinaria canadensis cp (Gr); Polemoniaceae: Phlox divaricata laphamii sn (Rb), Phlox pilosa sn (Rb), Polemonium reptans sn fq (Rb); Polygonaceae: Persicaria pensylvanica sn (Rb); Portulacaceae: Claytonia virginica (Shm); Primulaceae: Dodecatheon meadia cp exp (Rb, Mc); Ranunculaceae: Delphinium tricorne sn fq (Rb, Mc); Rhamnaceae: Ceanothus americanus sn cp (Rb); Rosaceae: Crataegus crus-galli sn (Rb), Malus coronaria sn fq (Rb), Prunus serotina [flwr sn] (Rb), Rosa blanda cp (Re), Rosa carolina cp (Rb), Rosa setigera cp fq (Rb), Rubus allegheniensis sn cp (Rb), Rubus occidentalis sn (Rb); Rubiaceae: Cephalanthus occidentalis sn fq (Rb), Houstonia lanceolata sn (Rb); Salicaceae: Salix discolor [unsp sn] (Gr), Salix nigra [stam sn] (Rb); Scrophulariaceae: Agalinis tenuifolia sn (Rb), Aureolaria grandiflora cp (Rb), Collinsia verna sn (Rb), Linaria vulgaris fq (Mc), Mimulus ringens sn (Mch), Pedicularis canadensis sn cp fq (Mc), Penstemon digitalis sn fq (CB), Penstemon grandiflorus sn (CB), Penstemon hirsutus sn (Rb), Veronicastrum virginicum fq (Cl); Solanaceae: Solanum dulcamara cp (Mc); Verbenaceae: Verbena hastata (Re), Verbena stricta sn (Rb, Re); Violaceae: Viola cucullata sn np (Rb), Viola pedata sn (Rb), Viola striata sn np (Rb); Vitaceae: Vitis riparia cp (Rb), Vitis vulpina cp (Rb)