Asclepiadaceae NEBC: 00562744 Cynanchum louiseae Kartesz & Gandhi USA: Massachusetts Topsfield: Topsfield S. K. Harris 9597 1954-6-28
Asteraceae NEBC: 01690402 Achillea millefolium Linnaeus USA: Massachusetts Methuen: Wheeler Street S. K. Harris 9602 1954-7-3
NEBC: 02265506 Centaurea cyanus Linnaeus USA: Massachusetts Rowley: US Rt 1 S. K. Harris 9547 1954-6-16
NEBC: 02265506 Cyanus segetum Hill USA: Massachusetts Rowley: US Rt 1 S. K. Harris 9547 1954-6-16
NEBC: 02577681 Helenium flexuosum Rafinesque USA: Massachusetts Boxford: Main Street S. K. Harris 9648 1954-7-25
NEBC: 01690498 Packera aurea (Linnaeus) A. Löve & D. Löve USA: Massachusetts Amesbury: Beech Hill S. K. Harris 9521 1954-6-16
Brassicaceae NEBC: 00617789 Erysimum cheiranthoides Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 9483 1954-5-14
NEBC: 00602026 Lepidium perfoliatum Linnaeus USA: Maine Rowley S. K. Harris 9538 1954-6-16
Cabombaceae NEBC: 00502861 Brasenia schreberi J. F. Gmelin USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9502 1954-6-11
Campanulaceae NEBC: 02284371 Specularia perfoliata (Linnaeus) A. de Candolle USA: Massachusetts Boxford: Main St. S. K. Harris 9600 1954-7-1
Caprifoliaceae NEBC: 02160510 Sambucus nigra canadensis (Linnaeus) Bolli USA: Massachusetts Topsfield: Ipswich River Wildlife Sanctuary S. K. Harris 9594 1954-6-28
Caryophyllaceae NEBC: 00693117 Silene viscaria (Linnaeus) Jessen USA: Massachusetts Topsfield: Topsfield S. K. Harris 9513 1954-6-14
Ceratophyllaceae NEBC: 00834261 Ceratophyllum echinatum A. Gray USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9500 1954-6-11
Commelinaceae NEBC: 00567798 Tradescantia virginiana Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 9646 1954-7-16
Cornaceae NEBC: 02160222 Swida amomum (Miller) Small USA: Massachusetts Topsfield: Ipswich River Wildlife Sanctuary S. K. Harris 9593 1954-6-28
Cyperaceae NEBC: 01042170 Cladium mariscoides (Muhlenberg) Torrey USA: Massachusetts Georgetown: Georgetown S. K. Harris 9468 1954-2-14
Fabaceae NEBC: 01620315 Vicia cracca Linnaeus USA: Massachusetts Methuen: Wheeler Street S. K. Harris 9608 1954-7-3
NEBC: 00761001 Vicia tetrasperma (Linnaeus) Schreber USA: Massachusetts Methuen: Methuen S. K. Harris 9621 1954-7-3
Haloragaceae NEBC: 01047029 Proserpinaca palustris crebra Fernald & Griscom USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9509 1954-6-11
Lemnaceae NEBC: 00875182 Spirodela polyrrhiza (Linnaeus) Schleiden USA: Massachusetts Boxford: Boxford S. K. Harris 9632 1954-7-4
Nymphaeaceae NEBC: 01014394 Nymphaea odorata Aiton USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9496 1954-6-11
Oleaceae NEBC: 00593768 Fraxinus americana Linnaeus USA: Massachusetts Methuen Town S. K. Harris 9627 1954-7-3
Plantaginaceae NEBC: 02285830 Veronica officinalis Linnaeus USA: Massachusetts Topsfield: Ipswich River Wildlife Sanctuary S. K. Harris 9591 1954-6-28
NEBC: 02285831 Veronica officinalis Linnaeus USA: Massachusetts Amesbury: Ipswich River Wildlife Sanctuary S. K. Harris 9561 1954-6-16
NEBC: 02285848 Veronica serpyllifolia Linnaeus USA: Massachusetts Amesbury: Beech Hill S. K. Harris 9530 1954-6-16
Poaceae NEBC: 00609743 Bromus commutatus Schrader USA: Massachusetts Newburyport: Newburyport S. K. Harris 9565 1954-6-24
NEBC: 01620439 Bromus hordeaceus Linnaeus USA: Massachusetts Rowley: US Route 1 S. K. Harris 9544 1954-6-16
NEBC: 00685841 Bromus rigidus Roth USA: Massachusetts Boxford: Boxford S. K. Harris 9635 1954-6-11
NEBC: 00613218 Bromus secalinus Linnaeus USA: Massachusetts Rowley: Rowley S. K. Harris 9541 1954-6-16
NEBC: 00635745 Dichanthelium depauperatum (Muhlenberg) Gould USA: Massachusetts Ipswich: Ipswich S. K. Harris 9568 1954-6-25
NEBC: 00875595 Dichanthelium sphaerocarpon (Elliott) Gould USA: Massachusetts Methuen Town S. K. Harris 9615 1954-7-3
NEBC: 00583082 Lolium multiflorum Lamarck USA: Massachusetts Rowley: Rowley S. K. Harris 9548 1954-6-16
NEBC: 00685795 Phleum subulatum (Savi) Asch. & Graebn. USA: Massachusetts Topsfield: Topsfield S. K. Harris 9642 1954-7-13
NEBC: 01150413 Poa palustris Linnaeus USA: Massachusetts Methuen Town S. K. Harris 9623 1954-7-3
NEBC: 00598024 Secale cereale Linnaeus USA: Massachusetts Rowley: Rowley S. K. Harris 9546 1954-6-16
Potamogetonaceae NEBC: 01081201 Potamogeton oakesianus J. W. Robbins USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9510 1954-6-11
NEBC: 01010069 Potamogeton pulcher Tuckerman USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9506 1954-6-11
NEBC: 00700618 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9503 1954-6-11
Primulaceae NEBC: 00572563 Lysimachia thyrsiflora Linnaeus USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9495 1954-6-11
Ranunculaceae NEBC: 00831059 Ranunculus abortivus Linnaeus USA: Massachusetts Amesbury Town S. K. Harris 9520 1954-6-16
Rhamnaceae NEBC: 02160772 Ceanothus americanus Linnaeus USA: Massachusetts Topsfield: Rt 97 near Hoods Pond S. K. Harris 9639 1954-7-12
Rubiaceae NEBC: 00765840 Asperula arvensis Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 9599 1954-7-1
Taxaceae NEBC: 00668441 Taxus canadensis Marshall USA: Massachusetts Amesbury Town S. K. Harris 9517 1954-6-16
NEBC: 00668443 Taxus canadensis Marshall USA: Massachusetts Salisbury: Salisbury S. K. Harris 9476 1954-2-14
Violaceae NEBC: 00771682 Viola tricolor Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 9647 1954-7-16
