Flowering Plants Visited
by Bombus pensylvanicus

Bombus pensylvanicus De Geer: Apidae (Bombini), Hymenoptera
(Observations are from Robertson, Graenicher, Betz et al., Baskin et al., Reed, Petersen, Mitchell, Clinebell & Bernhardt, Clinebell, Spira, Groman, Ames, Bernhardt, Macior, Iltis, Wesselingh & Arnold, Luer, Conger, Willson & Bertin, Stucky, Estes & Thorp, Daly, Costelloe, Ott, Smith et al., Discover Life, Harder & Barrett, Campbell et al., 2016, and Wilhelm & Rericha.)

Acanthaceae: Justicia americana sn (Rb), Ruellia humilis sn (Rb); Agavaceae: Manfreda virginica sn cp (Grm); Alismataceae: Sagittaria latifolia [stam sn cp fq] [pist sn fq] (Rb); Apiaceae: Eryngium yuccifolium sn (Rb), Pastinaca sativa sn (Rb), Polytaenia nuttalli sn (Rb), Sium suave cp (Rb), Zizia aurea sn (Rb); Asclepiadaceae: Asclepias incarnata [plpr sn] (Rb), Asclepias purpurascens [plab sn] [plup sn] (Rb, Btz), Asclepias sullivanti [plup sn] (Btz), Asclepias syriaca [plab sn fq] [plup sn] (Rb, Btz), Asclepias tuberosa [plup sn fq] (Btz, Smh), Asclepias verticillata [plab sn] [plup sn] (Rb, WB); Asteraceae: Antennaria plantaginifolia [stam sn] (Rb), Arctium lappa sn cp (Gr), Arctium minus sn cp (Rb), Arnoglossum muhlenbergii sn cp (Gr), Aster sp. fq (Smh), Aster anomalus sn fq (Rb), Aster drummondii sn (Gr), Aster ericoides sn (Rb), Aster laevis sn (Gr), Aster lanceolatus sn (Rb), Aster lateriflorus sn cp (Rb), Aster macrophyllus sn (Gr), Aster novae-angliae sn cp fq (Rb, Gr, Smh), Aster pilosus sn fq (Rb), Aster puniceus sn (Gr), Aster sagittifolius sn fq (Rb), Aster salicifolius sn (Rb), Aster turbinellus sn cp (Rb), Bidens aristosa sn cp fq (Rb, Smh), Bidens bipinnata sn (Rb), Bidens cernua sn fq (Rb), Bidens connata sn fq (Rb), Boltonia asterioides sn (Rb), Brickellia eupatorioides (Mch), Cirsium sp. fq (Smh), Cirsium altissimum sn cp fq (Rb, Gr), Cirsium arvense sn cp (Gr), Cirsium discolor sn cp fq (Rb, Re), Cirsium hillii sn (Rb), Cirsium vulgare sn cp fq icp (Rb, Gr), Chrysopsis sp. (Smh), Conoclinium coelestinum sn cp (Rb), Coreopsis palmata sn (Rb), Coreopsis tripteris sn fq (Rb), Echinacea pallida sn (Rb, Cl), Echinacea purpurea sn (Rb), Echinacea simulata (Cl), Erigeron philadelphicus (Smh), Eupatoriadelphus purpureus sn cp (Gr), Eupatorium altissimum sn (Rb), Eupatorium perfoliatum (Gr), Eupatorium serotinum sn (Rb), Euthamia graminifolia sn fq (Rb, Gr), Helenium autumnale sn fq (Rb, Gr), Helianthus annuus sn cp fq (Rb), Helianthus divaricatus sn fq (Rb), Helianthus giganteus sn (Gr), Helianthus grosseserratus sn fq (Rb), Helianthus mollis sn fq (Rb), Helianthus pauciflorus sn (Rb), Helianthus strumosus sn cp (Gr), Helianthus tuberosus sn cp fq (Rb), Heliopsis helianthoides sn cp (Rb, Gr), Krigia biflora sn (Rb), Liatris sp. fq (Smh), Liatris aspera sn fq (Rb, Re, Cl, Smh, WR), Liatris cylindracea (Cl), Liatris pycnostachya sn cp fq (Rb), Liatris spicata sn cp fq (Gr, Smh), Liatris squarrosa fq (Smh), Oligoneuron rigidum sn fq (Rb), Prenanthes aspera sn (Rb), Prenanthes crepidinea sn (Rb), Pyrrhopappus carolinianus cp (ET, Da), Ratibida pinnata (Smh), Senecio plattensis sn (Mc), Silphium laciniatum sn fq (Rb, Smh), Silphium perfoliatum sn cp fq (Rb), Silphium terebinthinaceum sn fq (Rb, Smh), Solidago sp. (Smh), Solidago canadensis sn fq (Rb), Solidago gigantea sn (Rb), Solidago nemoralis sn (Rb), Solidago speciosa sn fq (Rb), Tanacetum vulgare sn (Gr), Verbesina alternifolia sn (Rb), Verbesina helianthoides sn (Rb), Vernonia fasciculata sn fq (Rb), Vernonia gigantea (Smh); Balsaminaceae: Impatiens capensis sn (Rb), Impatiens pallida sn fq (Rb); Berberidaceae: Podophyllum peltatum sn (Rb); Bignoniaceae: Campsis radicans [flwr cp fq np] (Rb); Boraginaceae: Lithospermum canescens sn fq (Rb), Mertensia virginica sn fq (Rb); Brassicaceae: Dentaria laciniata sn (Rb); Cactaceae: Opuntia humifusa (Mch); Caesalpiniaceae: Chamaecrista fasciculata [flwr cp fq] (Rb, Smh), Senna marilandica [flwr cp] (Rb); Campanulaceae: Campanulastrum americanum sn fq (Rb), Lobelia × speciosa sn (Rb), Lobelia cardinalis prf sn@prf fq np (Rb), Lobelia siphilitica sn cp fq (Rb, Mc), Lobelia spicata sn (Rb), Triodanis perfoliata sn (Rb); Caprifoliaceae: Lonicera dioica sn (Rb, Gr), Lonicera oblongifolia sn (Gr), Lonicera reticulata sn fq (Gr), Lonicera tartarica sn (Gr), Symphoricarpos albus sn (Gr), Symphoricarpos occidentalis sn (Gr), Symphoricarpos orbiculatus sn cp (Rb), Triosteum perfoliatum sn (Rb), Viburnum dentatum sn (Rb); Caryophyllaceae: Cerastium fontanum sn (Rb), Silene stellaria sn (Rb); Commelinaceae: Tradescantia ohiensis cp (Rb), Tradescantia pilosa cp (Rb), Tradescantia virginiensis cp (Rb); Convolvulaceae: Calystegia sepium sn fq (Rb), Ipomoea hederacea sn fq (Rb, Stk), Ipomoea pandurata sn cp fq (Rb), Ipomoea purpurea sn fq (Rb, Stk); Cornaceae: Cornus obliqua sn cp (Rb), Cornus racemosa cp (Rb); Cucurbitaceae: Cucurbita pepo sn cp fq (Rb); Dipsacaceae: Dipsacus fullonum sn (Rb); Ebenaceae: Diospyros virginiana [stam sn] [pist sn] (Rb); Fabaceae: Amorpha canescens sn cp (Rb), Amphicarpaea bracteata comosa sn (Rb), Apios priceana (Cmb), Astragalus canadensis sn cp fq (Rb), Astragalus crassicarpus trichocalyx sn fq (Rb), Astragalus tennesseenis sn fq (BBQ), Baptisia leucantha sn cp fq (Rb, Pt), Baptisia leucophaea sn (Rb, Pt), Cercis canadensis sn (Rb), Crotalaria sagittalis sn (Rb), Dalea candida (Smh), Dalea purpurea sn cp fq (Rb, Re, Smh), Desmodium canadense cp fq (Rb, Re), Desmodium cuspidatum cp (Rb), Desmodium glabellum/perplexum cp (Rb), Desmodium illinoense cp (Rb), Desmodium paniculatum cp (Rb), Gymnocladus dioicus sn fq (Rb), Lespedeza capitata sn (Rb), Lespedeza virginica sn cp fq (Rb), Medicago sativa (DL), Melilotus alba sn fq (Rb, Re), Melilotus officinalis (Smh), Orbexilum onobrychis sn (Rb), Robinia pseudoacacia sn fq (Rb), Strophostyles helvola [flwr sn] (Rb), Strophostyles leiosperma [flwr sn] (Rb), Stylosanthes biflora sn (Rb), Trifolium pratense sn cp fq (Rb, Mc), Trifolium repens sn cp (Rb); Fumariaceae: Dicentra cucullaria sn fq (Rb); Gentianaceae: Frasera caroliniensis sn (Rb), Gentiana andrewsii sn cp (Rb, Mc, Cst), Gentiana puberulenta sn (Rb), Gentianella quinquefolia sn sn@prf (WR), Sabatia campestris (Smh); Geraniaceae: Geranium maculatum sn (Rb, Mc); Grossulariaceae: Ribes americanum sn (Gr), Ribes cynosbati sn (Gr), Ribes missouriense sn fq (Rb, Gr); Hippocastanaceae: Aesculus glabra sn fq (Rb), Aesculus hippocastanum sn fq (Rb); Hydrangeaceae: Hydrangea arborescens cp (Rb); Hydrophyllaceae: Hydrophyllum appendiculatum sn fq (Rb), Hydrophyllum virginianum sn fq (Rb), Phacelia bipinnatifida (DL); Hypericaceae: Hypericum punctatum cp (Rb), Hypericum pyramidatum cp (Rb), Hypericum sphaerocarpum cp (Rb); Iridaceae: Iris brevicaulis sn fq (Rb, WA), Iris fulva sn (WA), Iris versicolor shrevei sn fq (Rb); Lamiaceae: Agastache nepetoides sn cp fq (Rb), Agastache scrophulariaefolia sn cp fq (Rb), Blephilia ciliata sn cp fq (Rb, Smh), Blephilia hirsuta sn fq (Rb), Glechoma hederacea sn fq (Rb), Leonurus cardiaca sn (Rb), Lycopus americanus sn (Rb), Marrubium vulgare sn (Rb), Monarda bradburiana sn fq (Rb), Monarda fistulosa sn fq (Rb, Pt, Re), Monarda punctata (WR), Nepeta cataria sn fq (Rb), Prunella vulgaris sn fq (Rb, Smh), Pycnanthemum pilosum sn (Rb), Pycnanthemum tenuifolium sn (Rb), Scutellaria incana sn cp fq (Rb), Scutellaria ovata bracteata sn (Rb), Scutellaria parvula sn (Rb), Stachys palustris sn fq (Rb), Teucrium canadense sn/cp (Cng); Liliaceae: Allium cernuum sn (Gr), Camassia scilloides sn (Rb), Erythronium americanum sn (Gr), Polygonatum commutatum sn (Rb), Uvularia grandiflora sn cp (Rb, Gr); Linaceae: Linum sulcatum (Smh), Linum usitatissimum (DL);; Loasaceae: Mentzelia decapetala (DL); Lythraceae: Cuphea viscosissima sn fq (Rb), Lythrum alatum fq (Smh); Malvaceae: Abutilon theophrastii sn fq (Rb), Hibiscus laevis sn (Rb), Hibiscus lasiocarpos sn fq (Rb), Hibiscus moscheutos (Sp), Hibiscus trionum sn (Rb), Napaea dioica fq (Ilt), Sida spinosa sn fq (Rb); Mimosaceae: Desmanthus illinoensis fq (Smh), Schrankia nuttallii cp fq (Bht); Nelumbonaceae: Nelumbo lutea exp np (Rb); Onagraceae: Circaea lutetiana sn (Rb), Gaura biennis sn cp fq (Rb, Smh), Ludwigia alternifolia sn (Rb, Ott), Oenothera biennis sn cp fq (Rb), Oenothera pilosella sn cp fq (Rb); Orchidaceae: Calopogon tuberosus exp (Lu), Galearis spectabilis sn (Rb), Spiranthes gracilis sn (Rb), Spiranthes ochroleuca sn (Am); Orobanchaceae: Orobanche uniflora sn (Rb); Oxalidaceae: Oxalis sp. (Smh), Oxalis stricta sn (Rb), Oxalis violacea sn (Rb); Philadelphaceae: Philadelphus grandiflorus sn (Rb); Plantaginaceae: Plantago major cp (Rb); Polemoniaceae: Phlox divaricata laphamii sn fq (Rb), Phlox pilosa sn (Rb), Polemonium reptans sn fq (Rb); Polygonaceae: Persicaria pensylvanica sn fq (Rb); Pontederiaceae: Pontederia cordata sn (HB); Portulacaceae: Claytonia virginica sn (Rb); Primulaceae: Dodecatheon meadia cp exp fq (Rb, Mc); Ranunculaceae: Aquilegia canadensis sn fq (Mc), Clematis pitcheri sn cp (Rb), Enemion biternatum cp/exp (Rb), Delphinium tricorne sn fq (Rb, Mc), Ranunculus abortivus sn (Rb); Rhamnaceae: Rhamnus lanceolata sn (Rb); Rosaceae: Amelanchier arborea sn (Rb), Crataegus coccinea sn fq (Rb), Crataegus crus-galli sn (Rb), Crataegus mollis sn (Rb), Malus coronaria sn fq (Rb), Potentilla simplex sn (Rb), Prunus americana sn (Rb), Prunus serotina [flwr sn fq] (Rb), Rosa arkansana (DL), Rosa carolina cp fq (Rb), Rosa rugosa (DL), Rosa setigera cp fq (Rb), Rubus allegheniensis sn cp fq (Rb), Rubus argutus (DL), Rubus flagellaris sn fq (Rb), Rubus occidentalis sn (Rb); Rubiaceae: Cephalanthus occidentalis sn cp fq (Rb), Hedyotis nigricans (Smh); Salicaceae: Salix amygdaloides [pist sn] (Rb), Salix interior [stam sn] (Rb), Salix nigra [stam sn] (Rb); Saxifragaceae: Heuchera richardsonii sn (Rb); Scrophulariaceae: Agalinis tenuifolia sn fq (Rb), Agalinis purpurea sn cp fq (Rb), Aureolaria grandiflora sn cp fq (Rb), Castilleja coccinea sn (Gr), Collinsia verna sn (Rb), Dasistoma macrophylla sn cp fq (Rb, Smh), Linaria vulgaris sn cp fq (Rb, Mc), Mimulus alatus sn (Rb), Mimulus ringens sn (Rb, Cng), Pedicularis canadensis sn fq (Mc), Penstemon cobaea cobaea sn fq (CB), Penstemon cobaea purpureus sn (CB), Penstemon digitalis sn (Rb, CB), Penstemon grandiflorus sn (CB), Penstemon hirsutus sn fq (Rb), Penstemon pallidus sn (CB), Penstemon tubaeflorus sn (CB), Physostegia virginiana sn fq (Rb), Verbascum thapsus cp (Rb), Veronicastrum virginicum sn (Rb); Solanaceae: Solanum ptycanthum cp (Rb), Solanum rostratum cp (Rb); Staphyleaceae: Staphylea trifolia sn fq (Rb); Tiliaceae: Tilia americana sn (Rb); Verbenaceae: Phyla lanceolata sn (Rb), Verbena hastata sn fq (Rb), Verbena simplex (Smh), Verbena stricta sn (Rb), Verbena urticifolia sn (Rb); Violaceae: Viola cucullata sn np (Rb), Viola pedata sn fq (Rb), Viola pubescens sn np (Rb), Viola striata sn np (Rb); Vitaceae: Vitis riparia cp (Rb)

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