Alismataceae NEBC: 01032754 Sagittaria latifolia Willdenow USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-8-26
Alliaceae NEBC: 00611611 Allium vineale Linnaeus USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-7-4
Amaranthaceae NEBC: 00614845 Amaranthus blitoides S. Watson USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-8-2
NEBC: 00614866 Amaranthus caudatus Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-9-27
Apiaceae NEBC: 01051508 Hydrocotyle americana Linnaeus USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-7
NEBC: 01051615 Hydrocotyle umbellata Michaux USA: Massachusetts Freetown: Freetown C. H. Knowlton 1906-9-9
Apocynaceae NEBC: 00816457 Apocynum androsaemifolium Linnaeus USA: Massachusetts Lexington: Lexington C. H. Knowlton 1906-8-4
Aquifoliaceae NEBC: 00760895 Ilex laevigata (Pursh) A. Gray USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 00760896 Ilex laevigata (Pursh) A. Gray USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 00760897 Ilex laevigata (Pursh) A. Gray USA: Massachusetts Hanson: Hanson C. H. Knowlton 1906-6-18
NEBC: 00773973 Ilex mucronata (Linnaeus) M. Powell, Savolainen & S. Andrews USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
NEBC: 00713228 Ilex opaca Aiton USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 00713627 Ilex verticillata (Linnaeus) A. Gray USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
Aspidiaceae NEBC: 00627667 Polystichum acrostichoides (Michaux) Schott USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-7-4
Asteraceae NEBC: 00753313 Ageratina altissima (Linnaeus) R. M. King & H. Robinson USA: Massachusetts Natick: Natick C. H. Knowlton 1906-9-15
GH: 01007099 Anaphalis margaritacea (Linnaeus) Bentham & Hooker f. USA: Massachusetts Groton: Groton C. H. Knowlton 1906-8-12
NEBC: 01007111 Anaphalis margaritacea (Linnaeus) Bentham & Hooker f. USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
NEBC: 01007300 Antennaria howellii canadensis (Greene) Bayer USA: Massachusetts Chelmsford: N. [North] Chelmsford C. H. Knowlton 1906-5-30
NEBC: 00531409 Anthemis cotula Linnaeus USA: Massachusetts Groton: Groton C. H. Knowlton 1906-8-12
NEBC: 00587206 Arctium minus (Hill) Bernhardi USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-8-2
NEBC: 01038069 Bidens vulgata Greene USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-9-13
NEBC: 01038074 Bidens vulgata Greene USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-9-13
NEBC: 00580985 Cirsium arvense (Linnaeus) Scopoli USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-7
NEBC: 00753551 Eupatorium perfoliatum Linnaeus USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
NEBC: 01034223 Eupatorium pubescens Muhlenberg ex Willdenow USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 01052867 Euthamia graminifolia (Linnaeus) Nuttall USA: Massachusetts Arlington: Arlington C. H. Knowlton 1906-8-26
NEBC: 01079673 Euthamia tenuifolia USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 00535566 Helianthus annuus Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-8-2
NEBC: 00587520 Hieracium aurantiacum Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-7-18
NEBC: 00725415 Lactuca hirsuta Muhlenberg ex Nuttall USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
NEBC: 00718269 Matricaria discoidea de Candolle USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-7-4
NEBC: 01069068 Nabalus trifoliolatus Cassini USA: Massachusetts Natick: Natick C. H. Knowlton 1906-9-16
NEBC: 01037157 Pluchea odorata succulenta (Fernald) Cronquist USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-8-2
NEBC: 01079928 Solidago aestivalis E. P. Bicknell USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
NEBC: 01077290 Solidago arguta Aiton USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
NEBC: 01055268 Solidago canadensis Linnaeus USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
NEBC: 01055530 Solidago flexicaulis Linnaeus USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-8-26
NEBC: 01054468 Solidago gigantea Aiton USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-8-26
NEBC: 01054469 Solidago gigantea Aiton USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-8-26
NEBC: 01054776 Solidago juncea Aiton USA: Massachusetts Westford: Westford C. H. Knowlton 1906-8-12
NEBC: 01054784 Solidago juncea Aiton USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
NEBC: 01056140 Solidago latissimifolia Miller USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 01063874 Solidago uliginosa Nuttall USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-8-26
NEBC: 01031408 Symphyotrichum pilosum (Willdenow) G. L. Nesom USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 00655105 Tanacetum vulgare crispum (Linnaeus) Fernald USA: Massachusetts Groton: Groton C. H. Knowlton 1906-8-12
Blechnaceae GH: 00628273 Woodwardia areolata (Linnaeus) T. Moore USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-7-15
GH: 00628272 Woodwardia areolata (Linnaeus) T. Moore USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
Boraginaceae NEBC: 00638564 Hackelia virginiana (Linnaeus) I. M. Johnston USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-9-15
NEBC: 00676983 Myosotis laxa Lehmann USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-7
Brassicaceae NEBC: 00593870 Rorippa sylvestris (Linnaeus) Besser USA: Massachusetts Natick: Natick, near greenhouses C. H. Knowlton 1906-9-16
NEBC: 00582536 Sinapis arvensis Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-7-18
Caryophyllaceae NEBC: 00525101 Dianthus armeria Linnaeus USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-7-4
NEBC: 00722493 Paronychia canadensis (Linnaeus) Alph. Wood USA: Massachusetts Westford: Westford C. H. Knowlton 1906-8-12
NEBC: 00612839 Sagina procumbens Linnaeus USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-8
NEBC: 00693401 Spergularia marina (Linnaeus) Grisebach USA: Massachusetts Boston: Boston C. H. Knowlton 1906-8-2
NEBC: 00693829 Stellaria borealis Bigelow USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-5-27
NEBC: 00753614 Stellaria longifolia Muhlenberg ex Willdenow USA: Massachusetts Lexington: E. [East] Lexington C. H. Knowlton 1906-8-4
NEBC: 00581671 Vaccaria hispanica (Miller) Rauschert USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-7-18
Chenopodiaceae NEBC: 00670080 Atriplex dioica (Nuttall) J. F. Macbride USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-10-4
NEBC: 00592095 Atriplex patula Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-9-13
GH: 00592096 Atriplex patula Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-9-13
NEBC: 00561577 Chenopodium album Linnaeus USA: Massachusetts Ayer: Ayer C. H. Knowlton 1906-9-1
NEBC: 00598972 Chenopodium glaucum Linnaeus USA: Massachusetts Belmont: Belmont C. H. Knowlton 1906-6-29
NEBC: 00732189 Chenopodium simplex (Torrey) Rafinesque USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-10-4
NEBC: 00754653 Salicornia bigelovii Torrey USA: Massachusetts Revere: Revere C. H. Knowlton 1906-8-18
Cistaceae NEBC: 00699575 Crocanthemum canadense (Linnaeus) Britton USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
NEBC: 00757924 Lechea tenuifolia Michaux USA: Massachusetts Concord: Concord C. H. Knowlton 1906-11-18
Commelinaceae NEBC: 00567777 Commelina communis Linnaeus USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-9-15
NEBC: 00567713 Commelina communis Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-9-13
Cornaceae NEBC: 00767249 Cornus florida Linnaeus USA: Massachusetts Wilmington: Wilmington C. H. Knowlton 1906-5-20
Cupressaceae NEBC: 00652276 Chamaecyparis thyoides (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
Cyperaceae NEBC: 01620047 Carex atlantica atlantica USA: Massachusetts Waltham: [no additional data] C. H. Knowlton 1906-7-8
NEBC: 00218055 Carex blanda Dewey USA: Massachusetts Waltham: Waverley C. H. Knowlton 1906-5-27
NEBC: 00218802 Carex bullata Schkuhr ex Willdenow USA: Massachusetts Hanson: South Hanson C. H. Knowlton 1906-6-18
GH: 00221466 Carex canescens Linnaeus USA: Massachusetts Hanson: South Hanson C. H. Knowlton 1906-6-18
NEBC: 00260031 Carex crinita gynandra (Schweinitz) Schweinitz & Torrey USA: Massachusetts Amesbury: C. H. Knowlton 1906-8-5
NEBC: 00228744 Carex cryptolepis Mackenzie USA: Massachusetts Lexington: C. H. Knowlton 1906-8-4
NEBC: 00245730 Carex gracillima Schweinitz USA: Massachusetts Waltham: C. H. Knowlton 1906-5-27
NEBC: 00260031 Carex gynandra Schweinitz USA: Massachusetts Amesbury: C. H. Knowlton 1906-8-5
NEBC: 00807121 Carex nigra (Linnaeus) Reichard USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-5-20
NEBC: 00576865 Carex panicea Linnaeus USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
NEBC: 00854596 Carex pellita Muhlenberg ex Willdenow USA: Massachusetts Amesbury Town C. H. Knowlton 1906-6-24
NEBC: 00766628 Carex trisperma Dewey USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
NEBC: 01043898 Cyperus esculentus Linnaeus USA: Massachusetts Lakeville: Lakeville C. H. Knowlton 1906-9-9
NEBC: 01048158 Cyperus strigosus Linnaeus USA: Massachusetts Winchester: Winchester, Winter Pond C. H. Knowlton 1906-9-5
NEBC: 00892854 Rhynchospora alba (Linnaeus) Vahl USA: Massachusetts Natick: Natick C. H. Knowlton 1906-9-16
Dryopteridaceae NEBC: 00708973 Dryopteris carthusiana (Villars) H. P. Fuchs USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-7
NEBC: 00636330 Dryopteris marginalis (Linnaeus) A. Gray USA: Massachusetts Chester: Chester C. H. Knowlton 1906-7-4
Ericaceae NEBC: 00707933 Arctostaphylos uva-ursi (Linnaeus) Sprengel USA: Massachusetts Sudbury: Sudbury C. H. Knowlton 1906
NEBC: 00517818 Epigaea repens Linnaeus USA: Massachusetts Groton: E. [East] Groton C. H. Knowlton 1906-5-30
NEBC: 01069989 Orthilia secunda (Linnaeus) House USA: Massachusetts Groton: Groton C. H. Knowlton 1906-8-12
NEBC: 01073239 Pyrola americana Sweet USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-7-4
NEBC: 00770642 Rhododendron viscosum (Linnaeus) Torrey USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
NEBC: 00461852 Vaccinium angustifolium Aiton USA: Massachusetts Lexington: Lexington C. H. Knowlton 1906-5-13
NEBC: 01040237 Vaccinium oxycoccos Linnaeus USA: Massachusetts Natick: Natick C. H. Knowlton 1906-9-16
Euphorbiaceae NEBC: 01078211 Acalypha gracilens A. Gray USA: Massachusetts Winchester: Winchester, Winter Pond C. H. Knowlton 1906-8-26
NEBC: 00699295 Chamaesyce vermiculata (Rafinesque) House USA: Massachusetts Ayer: Ayer C. H. Knowlton 1906-9-1
Fabaceae NEBC: 00562367 Amphicarpaea bracteata (Linnaeus) Fernald USA: Massachusetts Warren: Warren C. H. Knowlton 1906-9-30
NEBC: 00562437 Amphicarpaea bracteata comosa (Linnaeus) Fernald USA: Massachusetts Revere: Revere C. H. Knowlton 1906-8-18
NEBC: 00747463 Apios americana Medikus USA: Massachusetts Arlington: Arlington C. H. Knowlton 1906-8-4
NEBC: 00747427 Apios americana Medikus USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 00643085 Astragalus glycyphyllos Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-8-2
NEBC: 00534855 Coronilla varia Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-7-18
NEBC: 00747969 Desmodium canadense (Linnaeus) de Candolle USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-8-26
NEBC: 00712412 Desmodium cuspidatum (Muhlenberg ex Willdenow) de Candolle ex G. Don USA: Massachusetts Natick: Natick C. H. Knowlton 1906-9-16
NEBC: 00558555 Desmodium nudiflorum (Linnaeus) de Candolle USA: Massachusetts Dunstable: Dunstable C. H. Knowlton 1906-8-12
NEBC: 00711223 Desmodium obtusum (Muhlenberg ex Willdenow) de Candolle USA: Massachusetts Burlington: Burlington C. H. Knowlton 1906-9-8
NEBC: 00711328 Desmodium paniculatum (Linnaeus) de Candolle USA: Massachusetts Chelmsford: Chelmsford C. H. Knowlton 1906-8-12
NEBC: 00639202 Desmodium rotundifolium (Michaux) de Candolle USA: Massachusetts Woburn: Woburn, Horn Pond Hill C. H. Knowlton 1906-8-26
NEBC: 00712462 Desmodium sessilifolium (Torr.) Torr. & A. Gray USA: Massachusetts Lakeville: Lakeville C. H. Knowlton 1906-9-9
NEBC: 00639942 Lespedeza sp. Michaux USA: Massachusetts Woburn: Woburn, Horn Pond Mt. C. H. Knowlton 1906-8-26
NEBC: 00591909 Vicia sativa nigra (Linnaeus) Ehrhart USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
Gentianaceae NEBC: 00726935 Gentiana linearis Froelich USA: Massachusetts Ashburnham: Ashburnham C. H. Knowlton 1906-9-2
Haloragaceae NEBC: 01067128 Myriophyllum humile (Rafinesque) Morong USA: Massachusetts Winchester: Winchester, Winter Pond C. H. Knowlton 1906-9-15
Iridaceae NEBC: 01044458 Iris versicolor Linnaeus USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
Juncaceae NEBC: 00864341 Juncus acuminatus lancifolia Michaux USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-8
Lamiaceae NEBC: 00505848 Hedeoma pulegioides (Linnaeus) Persoon USA: Massachusetts Woburn: Woburn, Horn Pond Mt. C. H. Knowlton 1906-8-26
NEBC: 00658501 Lycopus americanus Muhlenberg ex W. P. C. Barton USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-8-26
NEBC: 00658597 Lycopus amplectens Rafinesque USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 00658751 Lycopus uniflorus Michaux USA: Massachusetts Burlington: Burlington C. H. Knowlton 1906-9-8
NEBC: 00658752 Lycopus uniflorus Michaux USA: Massachusetts Arlington: Arlington C. H. Knowlton 1906-8-26
NEBC: 00658937 Lycopus virginicus Linnaeus USA: Massachusetts Arlington: Arlington C. H. Knowlton 1906-8-26
NEBC: 00658967 Lycopus virginicus Linnaeus USA: Massachusetts Pembroke: Pembroke C. H. Knowlton 1906-8-16
NEBC: 00759347 Mentha arvensis Linnaeus USA: Massachusetts Lexington: E. [East] Lexington C. H. Knowlton 1906-8-4
NEBC: 00759370 Mentha arvensis Linnaeus USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
NEBC: 01853770 Monarda media Willdenow USA: Massachusetts Halifax: [no additional data] C. H. Knowlton 1906-7-15
NEBC: 00642260 Pycnanthemum muticum (Michaux) Persoon USA: Massachusetts Chelmsford: Chelmsford C. H. Knowlton 1906-8-12
NEBC: 00648610 Pycnanthemum tenuifolium Schrader USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
NEBC: 00648751 Pycnanthemum virginianum (Linnaeus) B. L. Robinson & Fernald USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
NEBC: 00648761 Pycnanthemum virginianum (Linnaeus) B. L. Robinson & Fernald USA: Massachusetts Lexington: Lexington C. H. Knowlton 1906-8-4
NEBC: 00648790 Pycnanthemum virginianum (Linnaeus) B. L. Robinson & Fernald USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1906-7-29
NEBC: 00707646 Stachys pilosa Nuttall USA: Vermont Burlington: Burlington C. H. Knowlton 1906-9-8
NEBC: 00707647 Stachys pilosa Nuttall USA: Vermont Burlington: Burlington C. H. Knowlton 1906-9-8
Lentibulariaceae NEBC: 00664655 Utricularia vulgaris macrorhiza (L. LeConte) R. T. Clausen USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-7
Liliaceae NEBC: 00560528 Clintonia borealis (Aiton) Rafinesque USA: Massachusetts Amesbury Town C. H. Knowlton 1906-6-24
Lycopodiaceae NEBC: 00647991 Dendrolycopodium hickeyi (W. H. Wagner, Beitel & R. C. Moran) A. Haines USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906
NEBC: 00647990 Dendrolycopodium hickeyi (W. H. Wagner, Beitel & R. C. Moran) A. Haines USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906
NEBC: 00738310 Dendrolycopodium obscurum (Linnaeus) A. Haines USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906
NEBC: 00216710 Diphasiastrum tristachyum (Pursh) Holub USA: Massachusetts Ashburnham: C. H. Knowlton 1906-9-2
NEBC: 00772751 Lycopodium lagopus (Laestadius ex C. Hartman) G. Zinserling ex Kuzeneva USA: Massachusetts Ashburnham: Ashburnham C. H. Knowlton 1906-9-2
NEBC: 00342587 Lycopodium obscurum Linnaeus USA: Massachusetts Woburn: C. H. Knowlton 1906-11
Malvaceae NEBC: 00761519 Malva moschata Linnaeus USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
Onagraceae NEBC: 01073716 Circaea canadensis canadensis (Linnaeus) Hill USA: Massachusetts Tyngsborough: Tyngsborough C. H. Knowlton 1906-8-12
NEBC: 01041717 Epilobium palustre Linnaeus USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
NEBC: 01026417 Oenothera biennis Linnaeus USA: Massachusetts Arlington: Arlington C. H. Knowlton 1906-8-26
Orchidaceae NEBC: 00462071 Corallorhiza maculata (Rafinesque) Rafinesque USA: Massachusetts Groton: Groton C. H. Knowlton 1906-8-12
NEBC: 01079550 Platanthera blephariglottis (Willdenow) Lindley USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-7-15
NEBC: 01062224 Platanthera clavellata (Michaux) Luer USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
NEBC: 01063644 Spiranthes lacera gracilis (Bigelow) Luer USA: Massachusetts Groton: Groton C. H. Knowlton 1906-8-12
Osmundaceae NEBC: 00677568 Osmundastrum cinnamomeum (Linnaeus) C. Presl USA: Massachusetts Merrimac: Merrimac C. H. Knowlton 1906-8-5
Papaveraceae NEBC: 00759507 Macleaya cordata (Willdenow) R. Brown USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-7-18
NEBC: 00583987 Sanguinaria canadensis Linnaeus USA: Massachusetts Woburn: Woburn, Shaker Glen C. H. Knowlton 1906-5-13
Plantaginaceae NEBC: 00745287 Gratiola neglecta Torrey USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
NEBC: 00729506 Penstemon hirsutus (Linnaeus) Willdenow USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
Poaceae NEBC: 01174941 Danthonia compressa Austin USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-7-15
NEBC: 01151056 Dichanthelium latifolium (Linnaeus) Harvill USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
NEBC: 00875623 Dichanthelium sphaerocarpon (Elliott) Gould USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
NEBC: 00594939 Festuca filiformis Pourret USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
NEBC: 00863763 Leersia oryzoides (Linnaeus) Swartz USA: Massachusetts Groton: Groton, Baddacook Pond C. H. Knowlton 1906-8-12
NEBC: 00817711 Leersia virginica Willdenow USA: Massachusetts Revere: Revere C. H. Knowlton 1906-8-18
NEBC: 00864731 Muhlenbergia glomerata (Willdenow) Trinius USA: Massachusetts Groton: Groton, Edge of Baddacook Pond C. H. Knowlton 1906-8-12
NEBC: 01151947 Panicum dichotomiflorum Michaux USA: Massachusetts Lakeville: Lakeville C. H. Knowlton 1906-9-9
NEBC: 00722349 Paspalum setaceum psammophilum (Nash) D. Banks USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-7-15
NEBC: 01182185 Torreyochloa pallida (Torrey) G. L. Church USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-7
Polygonaceae NEBC: 00552039 Polygonum hydropiperoides Michaux USA: Massachusetts Burlington: Burlington C. H. Knowlton 1906-9-8
NEBC: 00664797 Polygonum scandens Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-9-13
Pontederiaceae NEBC: 00864218 Pontederia cordata Linnaeus USA: Massachusetts Waltham: Waltham, Hardys Pond C. H. Knowlton 1906-7-7
Primulaceae NEBC: 01040670 Hottonia inflata Elliott USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-7
NEBC: 00610407 Lysimachia punctata Linnaeus USA: Massachusetts Halifax or Pembroke C. H. Knowlton 1906-7-15
Ranunculaceae NEBC: 00562066 Actaea pachypoda Elliott USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-8-26
NEBC: 00753801 Anemone virginiana Linnaeus USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-7-4
NEBC: 01013298 Hepatica americana (de Candolle) Ker Gawler USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-4-27
Rosaceae NEBC: 00740680 Amelanchier stolonifera Wiegand USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-6-4
NEBC: 00756068 Fragaria virginiana Miller USA: Massachusetts Wilmington: Wilmington C. H. Knowlton 1906-5-20
NEBC: 00665946 Fragaria virginiana Miller USA: Massachusetts Hanson: Hanson C. H. Knowlton 1906-6-18
NEBC: 00756069 Fragaria virginiana Miller USA: Massachusetts South Hanson C. H. Knowlton 1906-6-18
NEBC: 00756070 Fragaria virginiana Miller USA: Massachusetts Wilmington: Wilmington C. H. Knowlton 1906-5-20
NEBC: 00756299 Potentilla fruticosa (Linnaeus) Rydberg USA: Massachusetts Groton: Groton C. H. Knowlton 1906-8-12
NEBC: 00561220 Potentilla norvegica Linnaeus USA: Massachusetts Boston: Boston, Fenway C. H. Knowlton 1906-8-2
NEBC: 00651342 Rubus occidentalis Linnaeus USA: Massachusetts Amesbury Town C. H. Knowlton 1906-6-24
NEBC: 00742101 Rubus setosus Bigelow USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
NEBC: 00742102 Rubus setosus Bigelow USA: Massachusetts Amesbury Town C. H. Knowlton 1906-8-5
NEBC: 00647687 Rubus sp. Linnaeus USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-8
NEBC: 00747003 Sorbus aucuparia Linnaeus USA: Massachusetts Amesbury Town C. H. Knowlton 1906-6-24
Rubiaceae NEBC: 00670662 Galium boreale Linnaeus USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-7-14
NEBC: 00670663 Galium boreale Linnaeus USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-7-4
NEBC: 00670872 Galium palustre Linnaeus USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-8
NEBC: 00866497 Galium tinctorium Linnaeus USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-7-15
Salicaceae NEBC: 00763061 Salix eriocephala Michaux USA: Massachusetts Chelmsford: N. [North] Chelmsford C. H. Knowlton 1906-5-30
NEBC: 00641151 Salix sericea Marshall USA: Massachusetts Halifax: Halifax C. H. Knowlton 1906-9-23
Saxifragaceae NEBC: 00730683 Ribes hirtellum Michaux USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-5-13
NEBC: 00771501 Ribes rubrum Linnaeus USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-5-13
Scrophulariaceae NEBC: 00630568 Scrophularia marilandica Linnaeus USA: Massachusetts Lexington: Lexington C. H. Knowlton 1906-10-13
Selaginellaceae NEBC: 00738036 Selaginella rupestris (Linnaeus) Spring USA: Massachusetts Boston: W. [West] Roxbury C. H. Knowlton 1906-8-25
Simaroubaceae NEBC: 00580449 Ailanthus altissima (Miller) Swingle USA: Massachusetts Arlington: Arlington C. H. Knowlton 1906-7-4
Solanaceae NEBC: 00564374 Solanum dulcamara Linnaeus USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-8
Tiliaceae NEBC: 00679401 Tilia americana Linnaeus USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-7
Ulmaceae NEBC: 00702716 Celtis occidentalis Linnaeus USA: Massachusetts Belmont: Waverley C. H. Knowlton 1906-5-27
NEBC: 00721780 Celtis occidentalis Linnaeus USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-5-27
Violaceae NEBC: 00760285 Viola adunca Smith USA: Massachusetts Ashburnham: Ashburnham C. H. Knowlton 1906-9-2
NEBC: 00560077 Viola blanda Willdenow USA: Massachusetts Merrimac: Merrimac C. H. Knowlton 1906-8-5
NEBC: 00504206 Viola cucullata Aiton USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-5-27
NEBC: 00659703 Viola fernaldii House USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-5-13
NEBC: 00629736 Viola pallens (Banks ex Gingins) Brainerd USA: Massachusetts Woburn: Woburn C. H. Knowlton 1906-5-13
NEBC: 00767557 Viola primulifolia acuta (Bigelow) Torr. & A. Gray USA: Massachusetts Halifax: Halifax C. H. Knowlton 7349 1906-7-15
NEBC: 00713817 Viola pubescens Aiton USA: Massachusetts Winchester: Winchester C. H. Knowlton 1906-7-4
NEBC: 00640257 Viola sagittata ovata (Nuttall) Torrey & A. Gray USA: Massachusetts Weston: Weston, Kendal Green C. H. Knowlton 1906-10-14
NEBC: 00659155 Viola sororia Willdenow USA: Massachusetts Waltham: Waltham C. H. Knowlton 1906-7-8