Harvard University Herbaria & Libraries

NEBC: 01065081 [bad data, blank import] USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-21
Aceraceae
NEBC: 00677096 Acer rubrum Linnaeus USA: Massachusetts Acton: Acton C. H. Knowlton 1931-9-16
Aizoaceae
NEBC: 00751161 Mollugo verticillata Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
Anacardiaceae
NEBC: 00690944 Rhus typhina Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00772277 Toxicodendron rydbergii (Small ex Rydberg) Greene USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
Apiaceae
NEBC: 00483612 Cicuta bulbifera Linnaeus USA: Maine Robbinston: Robbinston C. H. Knowlton 1931-8-29
NEBC: 01036065 Coelopleurum lucidum (Linnaeus) Fernald USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
GH: 01050992 Conioselinum chinense Britton, Stearn & Poggenburg USA: Maine Machias: Machias C. H. Knowlton 1931-8-18
NEBC: 01050993 Conioselinum chinense Britton, Stearn & Poggenburg USA: Maine Machias: Machias C. H. Knowlton 1931-8-18
NEBC: 01050994 Conioselinum chinense Britton, Stearn & Poggenburg USA: Maine Machias: Machias C. H. Knowlton 1931-8-14
NEBC: 01051111 Cryptotaenia canadensis (Linnaeus) de Candolle USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
NEBC: 01051374 Hydrocotyle americana Linnaeus USA: Maine Marshfield: Marshfield C. H. Knowlton 1931-8-10
NEBC: 01010301 Sium suave Walter USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
Araliaceae
NEBC: 00282938 Aralia racemosa Linnaeus USA: Massachusetts Dudley: C. H. Knowlton 1931-9-10
Aspleniaceae
NEBC: 00663724 Asplenium platyneuron (Linnaeus) Britton, Sterns & Poggenburg USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00681755 Asplenium ruta-muraria Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00701168 Asplenium trichomanes Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Asteraceae
NEBC: 00566726 Achillea millefolium Linnaeus USA: Maine Farmington: Farmington C. H. Knowlton 1931-9-5
NEBC: 00753278 Ageratina altissima (Linnaeus) R. M. King & H. Robinson USA: Vermont Proctor: Proctor C. H. Knowlton 1931-9-24
NEBC: 00753326 Ageratina altissima (Linnaeus) R. M. King & H. Robinson USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01023989 Ambrosia artemisiifolia Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 01023991 Ambrosia artemisiifolia Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 01023992 Ambrosia artemisiifolia Linnaeus USA: Maine Wesley: Wesley C. H. Knowlton 1931-8-13
NEBC: 01066044 Anaphalis margaritacea (Linnaeus) Bentham & Hooker f. USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00531311 Anthemis cotula Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00531317 Anthemis cotula Linnaeus USA: Maine Robbinston: Robbinston C. H. Knowlton 1931-8-29
NEBC: 00566229 Arctium minus (Hill) Bernhardi USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00531500 Artemisia absinthium Linnaeus USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-14
NEBC: 01037678 Bidens frondosa Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 01037684 Bidens frondosa Linnaeus USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 01037686 Bidens frondosa Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 01038251 Bidens frondosa Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01008003 Bidens vulgata Greene USA: Maine Farmington: Farmington C. H. Knowlton 1931-9-5
NEBC: 00587320 Cirsium vulgare (Savi) Tenore USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-16
NEBC: 00626696 Erechtites hieraciifolius (Linnaeus) Rafinesque ex de Candolle USA: Massachusetts Sudbury: Sudbury C. H. Knowlton 1931-9-16
NEBC: 00626761 Erechtites hieraciifolius (Linnaeus) Rafinesque ex de Candolle USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01016685 Erigeron canadensis Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00535917 Erigeron philadelphicus Linnaeus USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
NEBC: 01052503 Erigeron strigosus Muhlenberg ex Willdenow USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01052618 Erigeron strigosus septentrionalis (Fernald & Wiegand) Fernald USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 00755683 Eupatorium perfoliatum Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 01034004 Eupatorium perfoliatum Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00574218 Eurybia macrophylla (Linnaeus) Cassini USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-20
NEBC: 00574220 Eurybia macrophylla (Linnaeus) Cassini USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 01055131 Euthamia graminifolia (Linnaeus) Nuttall USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01019041 Eutrochium maculatum (Linnaeus) E. E. Lamont USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 01053842 Gnaphalium uliginosum Linnaeus USA: Maine Wesley: Wesley C. H. Knowlton 1931-8-12
NEBC: 01017111 Helianthus strumosus Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00531974 Hieracium aurantiacum Linnaeus USA: Maine Wesley: Wesley C. H. Knowlton 1931-8-13
NEBC: 00587481 Hieracium aurantiacum Linnaeus USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
NEBC: 01028874 Hieracium kalmii Linnaeus USA: Maine Strong: Strong C. H. Knowlton 1931-9-4
NEBC: 01028890 Hieracium kalmii Linnaeus USA: Maine Columbia Falls: Columbia Falls C. H. Knowlton 1931-8-20
NEBC: 01028894 Hieracium kalmii Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00833396 Hieracium marianum Willdenow USA: Massachusetts East Weymouth C. H. Knowlton 1931-7-12
NEBC: 00833413 Hieracium paniculatum Linnaeus USA: Maine Farmington: Farmington C. H. Knowlton 1931-9-4
NEBC: 00833646 Hieracium scabrum Michaux USA: Maine Phillips: Phillips C. H. Knowlton 1931-9-4
NEBC: 00833660 Hieracium scabrum Michaux USA: Maine Columbia Falls: Columbia Falls C. H. Knowlton 1931-8-20
NEBC: 00833664 Hieracium scabrum Michaux USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 01070020 Lactuca biennis (Moench) Fernald USA: Massachusetts Acton: Acton C. H. Knowlton 1931-9-16
NEBC: 00833930 Lactuca canadensis Linnaeus USA: Maine Farmington: Farmington C. H. Knowlton 1931-9-5
NEBC: 00833958 Lactuca canadensis Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 00833959 Lactuca canadensis Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 01067787 Lactuca canadensis Linnaeus USA: Massachusetts Oxford: Oxford C. H. Knowlton 1931-9-10
NEBC: 00718186 Matricaria discoidea de Candolle USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00575210 Nabalus albus (Linnaeus) Hooker USA: Massachusetts Acton: Acton C. H. Knowlton 1931-9-16
NEBC: 00575211 Nabalus albus (Linnaeus) Hooker USA: Massachusetts Acton: Acton C. H. Knowlton 1931-9-16
NEBC: 00575246 Nabalus albus (Linnaeus) Hooker USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00680495 Nabalus serpentarius (Pursh) Hooker USA: Massachusetts Sudbury: Sudbury C. H. Knowlton 1931-9-16
NEBC: 01017512 Petasites frigidus (Linnaeus) Fries USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-25
NEBC: 00626049 Rudbeckia hirta pulcherrima Farwell USA: Maine Wesley: Wesley C. H. Knowlton 1931-8-13
NEBC: 00718581 Scorzoneroides autumnalis borealis (Ball) Greuter USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 01077262 Solidago arguta Aiton USA: Vermont Wells: Wells C. H. Knowlton 1931-9-23
NEBC: 01077294 Solidago arguta Aiton USA: Massachusetts Douglas: Douglas C. H. Knowlton 1931-9-10
NEBC: 01077295 Solidago arguta Aiton USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00553173 Solidago bicolor Linnaeus USA: Vermont Rockingham: Rockingham C. H. Knowlton 1931-9-25
NEBC: 00553249 Solidago bicolor Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01054178 Solidago caesia Linnaeus USA: Vermont Wells: Wells C. H. Knowlton 1931-9-23
NEBC: 01054184 Solidago caesia Linnaeus USA: Vermont Rockingham: Rockingham C. H. Knowlton 1931-9-25
NEBC: 01077461 Solidago caesia Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01077549 Solidago canadensis Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 01055376 Solidago flexicaulis Linnaeus USA: Maine Perry: Perry C. H. Knowlton 1931-8-29
NEBC: 01054518 Solidago gigantea Aiton USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01054618 Solidago hispida Muhlenberg ex Willdenow USA: Maine Phillips: Phillips C. H. Knowlton 1931-9-14
NEBC: 01054825 Solidago juncea Aiton USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01054976 Solidago macrophylla Pursh USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 01054979 Solidago macrophylla Pursh USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-21
GH: 02003082 Solidago macrophylla Pursh USA: Maine Roque Bluffs C. H. Knowlton 592 1931-8-21
NEBC: 01056696 Solidago nemoralis Aiton USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01056708 Solidago nemoralis Aiton USA: Massachusetts Westborough: Westborough C. H. Knowlton 1931-9-18
NEBC: 00501254 Solidago rugosa Miller USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00501264 Solidago rugosa Miller USA: Massachusetts Westboro C. H. Knowlton 1931-9-18
NEBC: 00501437 Solidago rugosa aspera (Aiton) Fernald USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01064814 Solidago squarrosa Nuttall USA: Vermont Wells: Wells C. H. Knowlton 1931-9-23
NEBC: 01056894 Solidago uliginosa Nuttall USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
GH: 01056898 Solidago uliginosa Nuttall USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-24
NEBC: 01056899 Solidago uliginosa Nuttall USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-24
NEBC: 01056900 Solidago uliginosa Nuttall USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-24
NEBC: 01056947 Solidago uliginosa Nuttall USA: Vermont Shaftsbury: Shaftsbury C. H. Knowlton 1931-9-23
NEBC: 01064924 Solidago uliginosa Nuttall USA: Massachusetts Douglas: Douglas C. H. Knowlton 1931-9-10
NEBC: 01064928 Solidago uliginosa Nuttall USA: Massachusetts Oxford: Oxford C. H. Knowlton 1931-9-10
NEBC: 01064935 Solidago uliginosa Nuttall USA: Massachusetts Westborough: Westborough C. H. Knowlton 1931-9-18
NEBC: 00626255 Sonchus arvensis Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00637372 Sonchus arvensis uliginosus (M. Bieberstein) Nyman USA: Maine Robbinston: Robbinston C. H. Knowlton 1931-8-29
NEBC: 00834766 Symphyotrichum USA: Vermont Shaftsbury: Shaftsbury C. H. Knowlton 1931-9-23
NEBC: 00831886 Symphyotrichum dumosum (Linnaeus) G. L. Nesom USA: Massachusetts Acton: Acton C. H. Knowlton 1931-9-16
NEBC: 01015955 Symphyotrichum lanceolatum (Willdenow) G. L. Nesom USA: Massachusetts Sudbury: Sudbury C. H. Knowlton 1931-9-16
NEBC: 00697216 Symphyotrichum lateriflorum (Linnaeus) Á. Löve & D. Löve USA: Vermont Wells: Wells C. H. Knowlton 1931-9-23
NEBC: 00697223 Symphyotrichum lateriflorum (Linnaeus) Á. Löve & D. Löve USA: Vermont Manchester (Vermont): Manchester C. H. Knowlton 1931-9-23
NEBC: 00697288 Symphyotrichum lateriflorum (Linnaeus) Á. Löve & D. Löve USA: Massachusetts Oxford: Oxford C. H. Knowlton 1931-9-10
NEBC: 00697297 Symphyotrichum lateriflorum (Linnaeus) Á. Löve & D. Löve USA: Massachusetts Westborough: Westborough C. H. Knowlton 1931-9-18
NEBC: 00832371 Symphyotrichum novi-belgii (Linnaeus) G. L. Nesom USA: Maine Machias: Machias C. H. Knowlton 1931-9-1
NEBC: 00832372 Symphyotrichum novi-belgii (Linnaeus) G. L. Nesom USA: Maine Machias: Machias C. H. Knowlton 1931-8-28
NEBC: 01031351 Symphyotrichum novi-belgii (Linnaeus) G. L. Nesom USA: Massachusetts Westborough: Westborough C. H. Knowlton 1931-9-18
NEBC: 00574670 Symphyotrichum patens (Aiton) G. L. Nesom USA: Massachusetts Uxbridge: Uxbridge C. H. Knowlton 1931-9-10
NEBC: 01031517 Symphyotrichum pilosum pringlei (A. Gray) G. L. Nesom USA: Vermont Manchester (Vermont): Manchester C. H. Knowlton 1931-9-23
NEBC: 01031754 Symphyotrichum puniceum (Linnaeus) Á. Löve & D. Löve USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-9-1
NEBC: 01031904 Symphyotrichum puniceum (Linnaeus) Á. Löve & D. Löve USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01031913 Symphyotrichum puniceum (Linnaeus) Á. Löve & D. Löve USA: Massachusetts Upton: Upton C. H. Knowlton 1931-9-18
NEBC: 01014529 Symphyotrichum racemosum (Elliott) G. L. Nesom USA: Massachusetts Douglas: Douglas C. H. Knowlton 1931-9-10
NEBC: 01014530 Symphyotrichum racemosum (Elliott) G. L. Nesom USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 01014540 Symphyotrichum racemosum (Elliott) G. L. Nesom USA: Massachusetts Westborough: Westborough C. H. Knowlton 1931-9-18
NEBC: 00834705 Symphyotrichum undulatum (Linnaeus) G. L. Nesom USA: Massachusetts Uxbridge: Uxbridge C. H. Knowlton 1931-9-10
NEBC: 00655041 Tanacetum vulgare Linnaeus USA: Maine Machiasport: Machiasport C. H. Knowlton 1931-8-31
NEBC: 00576071 Tussilago farfara Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1931-8-20
Athyriaceae
NEBC: 00576323 Cystopteris bulbifera (Linnaeus) Bernhardi USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Betulaceae
NEBC: 00627922 Corylus americana Walter USA: Massachusetts East Weymouth Town C. H. Knowlton 1931-7-12
Boraginaceae
NEBC: 00638612 Mertensia maritima (Linnaeus) Gray USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00577214 Myosotis scorpioides Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Brassicaceae
NEBC: 00593260 Brassica nigra (Linnaeus) W. D. J. Koch USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00617877 Lepidium densiflorum Schrader USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00617878 Lepidium densiflorum Schrader USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00582273 Lepidium densiflorum Schrader USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 01023508 Lepidium virginicum Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00582863 Sisymbrium officinale leiocarpum de Candolle USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
Caprifoliaceae
NEBC: 00682020 Diervilla lonicera Miller USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00633348 Linnaea borealis americana (Forbes) Rehder USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00682315 Lonicera canadensis Bartram ex Marsh. USA: Maine Machias: Machias C. H. Knowlton 1931-8-28
NEBC: 00713989 Sambucus nigra canadensis (L.) R. Bolli USA: Maine Whitneyville: Whitneyville C. H. Knowlton 1931-8-10
NEBC: 00680227 Triosteum aurantiacum E. P. Bicknell USA: Vermont Wilton C. H. Knowlton 1931-7-16
Caryophyllaceae
NEBC: 00525115 Dianthus armeria Linnaeus USA: Massachusetts Weymouth Town C. H. Knowlton 1931-7-12
NEBC: 00689527 Minuartia michauxii Farwell USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00698656 Moehringia lateriflora robusta (Linnaeus) Fenzl USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00722697 Sagina nodosa (Linnaeus) Fenzl USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00722702 Sagina nodosa (Linnaeus) Fenzl USA: Maine Machiasport: Machiasport C. H. Knowlton 1931-8-17
NEBC: 00525491 Silene vulgaris (Moench) Garcke USA: Connecticut Machias C. H. Knowlton 1931-8-10
NEBC: 00525541 Silene vulgaris (Moench) Garcke USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
Celastraceae
NEBC: 00295184 Celastrus scandens Linnaeus USA: Vermont Milton: C. H. Knowlton 1931-7-16
Convolvulaceae
NEBC: 00684213 Cuscuta gronovii Willdenow ex Roemer & Schultes USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-23
Cornaceae
NEBC: 00773587 Cornus amomum Miller USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00767160 Cornus amomum Miller USA: Massachusetts Westborough: Westborough C. H. Knowlton 1931-9-18
NEBC: 00573433 Cornus racemosa Lamarck USA: Massachusetts Acton: Acton C. H. Knowlton 1931-9-16
NEBC: 00573514 Cornus racemosa Lamarck USA: Massachusetts Oxford: Oxford C. H. Knowlton 1931-9-10
NEBC: 00502579 Cornus rugosa Lamarck USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Crassulaceae
NEBC: 00675057 Sedum rosea (Linnaeus) Scopoli USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
Cyperaceae
NEBC: 01182702 Bulbostylis capillaris (Linnaeus) Kunth ex C. B. Clarke USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00217139 Carex aurea Nuttall USA: Vermont Middlebury: C. H. Knowlton 1931-5-22
NEBC: 00222462 Carex communis communis USA: Vermont South Hero: C. H. Knowlton 1931-5-24
NEBC: 00228827 Carex cumulata (L. H. Bailey) Mackenzie USA: Maine Northfield: C. H. Knowlton 1931-8-13
NEBC: 00242727 Carex flava Linnaeus USA: Vermont Chelsea: C. H. Knowlton 1931-7-14
NEBC: 00241044 Carex folliculata Linnaeus USA: Maine Northfield: C. H. Knowlton 1931-8-13
NEBC: 00260616 Carex hormathodes Fernald USA: Maine Jonesport: doublehaeded Shot Isl [Island] C. H. Knowlton 1931-8-26
NEBC: 00808432 Carex lurida Wahlenberg USA: Vermont Burlington: Burlington C. H. Knowlton 1931-7-16
NEBC: 00895264 Carex michauxiana Boeckeler USA: Maine Salem C. H. Knowlton 1931-9-4
NEBC: 00717097 Carex muehlenbergii enervis Boott USA: Massachusetts East Weymouth Town C. H. Knowlton 1931-7-4
NEBC: 00854434 Carex pedunculata Muhlenberg ex Willdenow USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 01043295 Carex vulpinoidea Michaux USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 01048041 Eleocharis erythropoda Steudel USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-18
NEBC: 00894962 Scirpus cyperinus (Linnaeus) Kunth USA: Maine Columbia Falls: Columbia Falls C. H. Knowlton 1931-8-20
NEBC: 00894969 Scirpus cyperinus (Linnaeus) Kunth USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 01160588 Scirpus fluviatilis (Torrey) A. Gray USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-18
NEBC: 01160853 Scirpus pedicellatus Fernald USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
Dennstaedtiaceae
NEBC: 00677948 Dennstaedtia punctilobula (Michaux) T. Moore USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00631327 Pteridium aquilinum pseudocaudatum (Clute) Hultén USA: Massachusetts East Weymouth C. H. Knowlton 1931-7-4
Dryopteridaceae
NEBC: 00667566 Dryopteris campyloptera (Kunze) Clarkson USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00704717 Dryopteris intermedia (Muhlenberg ex Willdenow) A. Gray USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00636235 Dryopteris marginalis (Linnaeus) A. Gray USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00657735 Dryopteris marginalis (Linnaeus) A. Gray USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
Dysphaniaceae
NEBC: 00592452 Dysphania botrys (Linnaeus) Mosyakin & Clemants USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Ericaceae
NEBC: 00638196 Vaccinium vitis-idaea minus Loddiges USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
Fabaceae
NEBC: 00501472 Trifolium arvense Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
Fagaceae
NEBC: 00662470 Quercus coccinea Münchhausen USA: Massachusetts Stow: Stow C. H. Knowlton 1931-9-16
NEBC: 00676094 Quercus prinoides Willdenow USA: Massachusetts East Weymouth C. H. Knowlton 1931-7-19
Geraniaceae
NEBC: 01068320 Geranium maculatum Linnaeus USA: Massachusetts Stoughton: Stoughton C. H. Knowlton 1931-6-28
NEBC: 01068505 Geranium robertianum Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Hypericaceae
NEBC: 00774177 Hypericum canadense Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00773188 Hypericum ellipticum Hooker USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00765215 Hypericum perforatum Linnaeus USA: Maine Wesley: Wesley C. H. Knowlton 1931-8-13
NEBC: 00774990 Triadenum virginicum (Linnaeus) Rafinesque USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
Iridaceae
NEBC: 00869966 Iris hookeri Penny ex Loudon USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
Juglandaceae
NEBC: 00622033 Carya ovata (Miller) K. Koch USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Juncaceae
NEBC: 00859003 Juncus effusus solutus Fernald & Wiegand USA: Maine Columbia Falls: Columbia Falls C. H. Knowlton 1931-8-20
NEBC: 00859004 Juncus effusus solutus Fernald & Wiegand USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 00835849 Juncus effusus decipiens Buchenau USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00865367 Luzula multiflora (Ehrhart) Lejeune USA: Massachusetts Randolph: Randolph C. H. Knowlton 1931-6-28
Lamiaceae
NEBC: 00656158 Clinopodium vulgare Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00656161 Clinopodium vulgare Linnaeus USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
NEBC: 00696431 Collinsonia canadensis Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00656264 Galeopsis bifida Boenninghausen USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00696912 Lycopus uniflorus Michaux USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00749010 Mentha arvensis Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00581892 Nepeta cataria Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00751877 Prunella vulgaris lanceolata (W. P. C. Barton) Fernald USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00648929 Scutellaria galericulata Linnaeus USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00648931 Scutellaria galericulata Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00686589 Scutellaria lateriflora Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 00686612 Trichostema dichotomum Linnaeus USA: Massachusetts Westborough: Westborough C. H. Knowlton 1931-9-18
Liliaceae
NEBC: 00817330 Maianthemum racemosum (Linnaeus) Link USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00810922 Uvularia sessilifolia Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
Lobeliaceae
NEBC: 00820560 Lobelia cardinalis Linnaeus USA: Maine Crawford: Crawford C. H. Knowlton 1931-8-13
NEBC: 00820562 Lobelia cardinalis Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 00755424 Lobelia inflata Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00755427 Lobelia inflata Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
Lythraceae
NEBC: 00551129 Lythrum salicaria Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Menispermaceae
NEBC: 00834059 Menispermum canadense Linnaeus USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
Oleaceae
NEBC: 00602093 Fraxinus americana Linnaeus USA: Maine Perry: Perry C. H. Knowlton 1931-8-29
Onagraceae
NEBC: 01039361 Chamaenerion angustifolium (Linnaeus) Scopoli USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 01074135 Circaea alpina Linnaeus USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
NEBC: 01074539 Circaea sterilis Boufford USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 01074611 Epilobium ciliatum Rafinesque USA: Maine Columbia Falls: Columbia Falls C. H. Knowlton 1931-8-20
NEBC: 01057565 Epilobium leptophyllum Rafinesque USA: Maine Columbia Falls: Columbia Falls C. H. Knowlton 1931-8-20
NEBC: 01026736 Oenothera biennis Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
Ophioglossaceae
NEBC: 00739377 Botrychium matricariifolium A. Brown USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
Orchidaceae
NEBC: 00834386 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Vermont Irasburg: Irasburg C. H. Knowlton 1931-5-28
NEBC: 00728977 Platanthera huronensis (Nuttall) Lindley USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
NEBC: 01077955 Spiranthes cernua (Linnaeus) Richard USA: Maine Phillips: Phillips C. H. Knowlton 1931-9-4
Orobanchaceae
NEBC: 00630609 Aureolaria virginica (Linnaeus) Pennell USA: Massachusetts East Weymouth C. H. Knowlton 1931-7-12
Osmundaceae
NEBC: 00720137 Osmunda regalis spectabilis (Willdenow) A. Gray USA: Maine Crawford: Crawford C. H. Knowlton 1931-8-13
Oxalidaceae
NEBC: 01071387 Oxalis stricta Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 01071399 Oxalis stricta Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
Phrymaceae
NEBC: 00664686 Phryma leptostachya Linnaeus USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 00664696 Phryma leptostachya Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Plantaginaceae
NEBC: 00617228 Plantago major Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00650552 Plantago maritima juncoides (Lamarck) A. Gray USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00650561 Plantago maritima juncoides (Lamarck) A. Gray USA: Maine Machiasport: Machiasport C. H. Knowlton 1931-8-17
NEBC: 00656468 Veronica arvensis Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00656912 Veronica persica Poiret USA: Maine Machias: Machias C. H. Knowlton 1931-8-28
Poaceae
NEBC: 00868047 Bromus ciliatus Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 01178239 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: Massachusetts Randolph: Randolph C. H. Knowlton 1931-6-28
NEBC: 02285909 Dichanthelium dichotomum (Linnaeus) Gould USA: Massachusetts Milton: Blue Hill Reservoir C. H. Knowlton 1931-7-5
NEBC: 01151095 Dichanthelium latifolium (Linnaeus) Harvill USA: Massachusetts East Weymouth C. H. Knowlton 1931-7-12
NEBC: 02285908 Dichanthelium linearifolium (Scribner) Gould USA: Massachusetts Milton: Blue Hill Reservoir C. H. Knowlton 1931-7-5
NEBC: 00865753 Elymus hystrix Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00863167 Elymus trachycaulus (Link) Gould ex Shinners USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00863168 Elymus trachycaulus (Link) Gould ex Shinners USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00859306 Glyceria canadensis (Michaux) Trinius USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-25
NEBC: 00859314 Glyceria canadensis (Michaux) Trinius USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00864841 Muhlenbergia mexicana (Linnaeus) Trinius USA: Maine Strong: Strong C. H. Knowlton 1931-9-4
NEBC: 00864955 Muhlenbergia mexicana (Linnaeus) Trinius USA: Vermont Rockingham: Rockingham C. H. Knowlton 1931-9-25
NEBC: 00855899 Muhlenbergia schreberi J. F. Gmelin USA: Massachusetts Hingham: Hingham C. H. Knowlton 1931-9-13
NEBC: 00689177 Panicum philadelphicum Bernhardi ex Trinius USA: Maine Crawford: Crawford C. H. Knowlton 1931-8-9
NEBC: 00689177 Panicum tuckermanii Fernald USA: Maine Crawford: Crawford C. H. Knowlton 1931-8-9
NEBC: 00614200 Setaria viridis (Linnaeus) P. Beauvois USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00614246 Setaria viridis (Linnaeus) P. Beauvois USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
Polygalaceae
NEBC: 00752129 Polygala sanguinea Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
Polygonaceae
NEBC: 00749598 Polygonum aviculare depressum (Meisner) Arcangeli USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00762279 Polygonum boreale (Lange) Small USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00731903 Polygonum lapathifolium Linnaeus USA: Maine Perry: Perry C. H. Knowlton 1931-8-29
NEBC: 00729167 Polygonum sagittatum Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00729325 Polygonum sagittatum Linnaeus USA: Massachusetts Dudley: Dudley C. H. Knowlton 1931-9-10
NEBC: 00736947 Rumex pallidus Bigelow USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
Polypodiaceae
NEBC: 00658056 Polypodium virginianum Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Pontederiaceae
NEBC: 00855491 Pontederia cordata Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
Ranunculaceae
NEBC: 00753729 Anemone virginiana Linnaeus USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 00753735 Anemone virginiana Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00575786 Clematis virginiana Linnaeus USA: Massachusetts Westborough: Westborough C. H. Knowlton 1931-9-18
NEBC: 00595941 Hepatica acutiloba de Candolle USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 01013258 Hepatica americana (de Candolle) Ker Gawler USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00692953 Thalictrum pubescens Pursh USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
Rhamnaceae
NEBC: 00415072 Ceanothus americanus Linnaeus USA: Massachusetts B. H. [Blue Hills] Reserv. C. H. Knowlton 1931-7-5
NEBC: 00415072 Ceanothus americanus intermedius (Pursh) Torrey & A. Gray USA: Massachusetts B. H. [Blue Hills] Reserv. C. H. Knowlton 1931-7-5
Rosaceae
NEBC: 00649866 Agrimonia striata Michaux USA: Maine Perry: Perry C. H. Knowlton 1931-8-29
NEBC: 00661695 Amelanchier laevis Wiegand USA: Maine Marshfield: Marshfield C. H. Knowlton 1931-8-10
NEBC: 00661696 Amelanchier laevis Wiegand USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00740647 Amelanchier stolonifera Wiegand USA: Maine Machias: Machias C. H. Knowlton 1931-8-10
NEBC: 00661919 Amelanchier stolonifera Wiegand USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
NEBC: 00688876 Geum aleppicum strictum Fernald USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 00688995 Geum canadense Jacquin USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 00561047 Potentilla norvegica Linnaeus USA: Maine Addison: Addison C. H. Knowlton 1931-8-20
NEBC: 00561050 Potentilla norvegica Linnaeus USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00756429 Potentilla simplex Michaux USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00740028 Prunus pensylvanica Linnaeus f. USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00742918 Prunus virginiana Linnaeus USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 00669385 Rosa blanda Aiton USA: Maine Edmunds C. H. Knowlton 1931-7-29
NEBC: 00758235 Rosa virginiana Miller USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00651616 Rubus odoratus Linnaeus USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
Rubiaceae
NEBC: 00650832 Galium aparine Linnaeus USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00503703 Galium asprellum Michaux USA: Massachusetts Oxford: Oxford C. H. Knowlton 1931-9-10
NEBC: 00503554 Galium asprellum Michaux USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 00558444 Galium circaezans hypomalacum Fernald USA: Massachusetts East Weymouth C. H. Knowlton 1931-7-12
GH: 02138861 Galium palustre Linnaeus Canada: Quebec Province [data not captured] C. H. Knowlton 1931-7-18
NEBC: 00755158 Galium palustre Linnaeus USA: Maine Columbia Falls: Columbia Falls C. H. Knowlton 1931-8-20
NEBC: 00732123 Galium palustre Linnaeus USA: Vermont Swanton: Swanton C. H. Knowlton 1931-7-19
NEBC: 00732137 Galium palustre Linnaeus USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
NEBC: 00670939 Galium tinctorium Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
NEBC: 00820122 Galium trifidum halophilum Fernald & Wiegand USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00503366 Galium triflorum Michaux USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
Salicaceae
NEBC: 00646780 Salix pyrifolia Andersson USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-13
Saxifragaceae
NEBC: 01038660 Mitella diphylla Linnaeus USA: Vermont Chelsea: Chelsea C. H. Knowlton 1931-7-14
Scrophulariaceae
NEBC: 00686773 Lindernia dubia (Linnaeus) Pennell USA: Maine Marshfield: Marshfield C. H. Knowlton 1931-8-10
NEBC: 00668951 Mimulus ringens Linnaeus USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16
Violaceae
NEBC: 00565788 Viola blanda Willdenow USA: Maine Northfield: Northfield C. H. Knowlton 1931-8-15
NEBC: 00773788 Viola primulifolia acuta (Bigelow) Torr. & A. Gray USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1931-8-23
NEBC: 00687400 Viola pubescens Aiton USA: Vermont South Hero: South Hero C. H. Knowlton 1931-5-24
NEBC: 00721378 Viola rostrata Pursh USA: Vermont South Hero: South Hero C. H. Knowlton 1931-5-24
NEBC: 00640898 Viola sororia Willdenow USA: Maine Columbia Falls: Columbia Falls C. H. Knowlton 1931-8-20
NEBC: 00640909 Viola sororia Willdenow USA: Maine Jonesport: Jonesport C. H. Knowlton 1931-8-26
NEBC: 00649252 Viola sororia Willdenow USA: Vermont South Hero: South Hero C. H. Knowlton 1931-5-24
Woodsiaceae
NEBC: 00676404 Woodsia obtusa (Sprengel) Torrey USA: Vermont Milton: Milton C. H. Knowlton 1931-7-16