Alismataceae NEBC: 01080997 Echinodorus tenellus parvulus (Engelmann) Fassett USA: Massachusetts Concord: Concord, Sudbury River west of Rout... C. B. Hellquist 2790 1971-9-7
NEBC: 01080381 Sagittaria engelmanniana J. G. Smith USA: Massachusetts Plymouth: Plymouth C. B. Hellquist 2554 1971-9-10
NEBC: 01080997 Sagittaria sp. USA: Massachusetts Concord: Concord, Sudbury River west of Rout... C. B. Hellquist 2790 1971-9-7
NEBC: 01080997 Sagittaria subulata (Linnaeus) Buch USA: Massachusetts Concord: Concord, Sudbury River west of Rout... C. B. Hellquist 2790 1971-9-7
Apiaceae NEBC: 01009657 Sium suave Walter USA: Massachusetts Manchester: Manchester C. B. Hellquist 3104 1971-6-3
Araceae GH: 01634037 Acorus calamus Linnaeus USA: Minnesota Mississippi River east of Route 7 south of B... C. B. Hellquist 2304 1971
Asteraceae NEBC: 01066753 Bidens beckii Torrey USA: New Hampshire Moultonborough: Moultonborough C. B. Hellquist 2088 1971-8-17
NEBC: 01066755 Bidens beckii Torrey USA: New Hampshire Tuftonboro: Tuftonboro C. B. Hellquist 2440 1971-8-25
Brassicaceae NEBC: 01023931 Subularia aquatica Linnaeus USA: New Hampshire Conway: Conway C. B. Hellquist 3326 1971-9-2
Cabombaceae NEBC: 00578666 Cabomba caroliniana A. Gray USA: Massachusetts Framingham: Framingham, Sudbury River near C... C. B. Hellquist 3189 1971-10-3
Ceratophyllaceae GH: 02073266 Ceratophyllum demersum Linnaeus USA: Iowa [data not captured] C. B. Hellquist 2228 1971-7-6
GH: 02073263 Ceratophyllum demersum Linnaeus USA: Indiana [data not captured] C. B. Hellquist 1681 1971-6-30
GH: 02073259 Ceratophyllum demersum Linnaeus USA: Indiana [data not captured] C. B. Hellquist 1682 1971-6-30
GH: 02073258 Ceratophyllum demersum Linnaeus USA: Indiana [data not captured] C. B. Hellquist 1829 1971-7-3
GH: 02073257 Ceratophyllum demersum Linnaeus USA: Indiana [data not captured] C. B. Hellquist 1705 1971-6-30
GH: 02073256 Ceratophyllum demersum Linnaeus USA: Indiana [data not captured] C. B. Hellquist 1833 1971-6-29
GH: 02073254 Ceratophyllum demersum Linnaeus USA: Indiana [data not captured] C. B. Hellquist 1755 1971-7-1
GH: 02073287 Ceratophyllum demersum Linnaeus USA: Minnesota [data not captured] C. B. Hellquist 2235 1971-7-9
Cyperaceae GH: 01043061 Eriophorum tenellum Nuttall USA: New Hampshire Ossipee: Ossipee C. B. Hellquist 4057 1971-7-29
GH: 01043061 Eriophorum viridicarinatum (Engelmann) Fernald USA: New Hampshire Ossipee: Ossipee C. B. Hellquist 4057 1971-7-29
Haloragaceae NEBC: 00312074 Myriophyllum heterophyllum Michaux USA: Massachusetts Canton: Hoghtons Pond [Blue Hills Reservatio... C. B. Hellquist 2610 1971-9-29
NEBC: 00312075 Myriophyllum heterophyllum Michaux USA: Massachusetts Canton: Ponkapog Pond [Blue Hills Reservatio... C. B. Hellquist 2656 1971-9-21
NEBC: 00580669 Myriophyllum heterophyllum Michaux USA: Massachusetts Hopkinton: Hopkinton, North Pond West Main S... C. B. Hellquist 1424 1971-6-10
NEBC: 00580670 Myriophyllum heterophyllum Michaux USA: Massachusetts Hopkinton: Hopkinton, Lake Whitehall C. B. Hellquist 2669 1971-9-12
NEBC: 00580671 Myriophyllum heterophyllum Michaux USA: Massachusetts Dover: Dover C. B. Hellquist 3212 1971-10-3
NEBC: 00580673 Myriophyllum heterophyllum Michaux USA: Massachusetts Hopedale: Hopedale C. B. Hellquist 1508 1971-6-16
NEBC: 00580676 Myriophyllum heterophyllum Michaux USA: Massachusetts Upton: Upton C. B. Hellquist 1549 1971-6-22
NEBC: 01071046 Myriophyllum tenellum Bigelow USA: New Hampshire Madison: Madison C. B. Hellquist 1971-9-2
NEBC: 01071069 Myriophyllum tenellum Bigelow USA: Massachusetts Plymouth: Plymouth C. B. Hellquist 3221 1971-9-10
Hydrocharitaceae NEBC: 00579921 Egeria densa Planchon USA: Massachusetts Milton: Milton C. B. Hellquist 3257 1971-9-28
NEBC: 00635017 Elodea nuttallii (Planchon) H. St. John USA: Massachusetts Milton: Milton C. B. Hellquist 3251 1971-9-28
NEBC: 01047628 Elodea nuttallii (Planchon) H. St. John USA: New Hampshire Ossipee: Ossipee C. B. Hellquist 3589 1971-8-5
NEBC: 00635087 Vallisneria americana Michaux USA: New Hampshire Moultonborough: Moultonborough C. B. Hellquist 3631 1971-8-18
Juncaceae GH: 02100197 Juncus brevicaudatus (Engelmann) Fernald Canada: Ontario [data not captured] C. B. Hellquist 4142 1971-7-10
Lentibulariaceae GH: 01975111 Utricularia gibba Linnaeus USA: Indiana Lake Cicotte. C. B. Hellquist 1596 1971-7-1
GH: 01975133 Utricularia intermedia Hayne Canada: Ontario Inlet to Lake Rongie, Route 17. Schreiber. C. B. Hellquist 1436 1971-7-10
GH: 01975618 Utricularia macrorhiza LeConte USA: Minnesota Mississippi River. West of County Route 9 br... C. B. Hellquist 2198 1971-7-9
GH: 01975593 Utricularia macrorhiza LeConte USA: Indiana On south shore of South Mud Lake, Fulton. C. B. Hellquist 1559 1971-6-29
NEBC: 00736400 Utricularia radiata Small USA: New Hampshire Ossipee: Ossipee C. B. Hellquist 2058 1971-8-11
NEBC: 00664585 Utricularia vulgaris Linnaeus USA: New Hampshire Ossipee: Ossipee C. B. Hellquist 2069 1971-8-16
Najadaceae NEBC: 01032084 Najas gracillima (A. Braun ex Engelmann) Magnus USA: New Hampshire Tamworth: Tamworth C. B. Hellquist 2377 1971-9-3
Nelumbonaceae NEBC: 00648264 Nelumbo lutea Willdenow USA: Massachusetts Wenham: Wenham C. B. Hellquist 2822 1971-9-7
Nymphaeaceae NEBC: 01014656 Nymphaea odorata Aiton USA: Massachusetts Plymouth: Plymouth C. B. Hellquist 3227 1971-9-10
NEBC: 00761942 Nymphaea odorata tuberosa (Paine) Wiersema & Hellquist USA: Massachusetts Winchester: Winchester, by Upper Mystic Lake C. B. Hellquist 3239 1971-9-22
NEBC: 00761922 Nymphaea tuberosa Paine USA: New Hampshire Moultonborough: Moultonborough C. B. Hellquist 2492 1971-8-18
NEBC: 00761923 Nymphaea tuberosa Paine USA: New Hampshire Durham: Durham C. B. Hellquist 2482 1971-8-21
NEBC: 00761936 Nymphaea tuberosa Paine USA: Vermont Windsor: Windsor C. B. Hellquist 2494 1971-8-30
NEBC: 00761940 Nymphaea tuberosa Paine USA: Massachusetts Concord: Concord, Sudbury River at Route 2 C. B. Hellquist 2500 1971-9-7
NEBC: 00761942 Nymphaea tuberosa Paine USA: Massachusetts Winchester: Winchester, by Upper Mystic Lake C. B. Hellquist 3239 1971-9-22
Onagraceae NEBC: 00745812 Ludwigia palustris (Linnaeus) Elliott USA: New Hampshire Wolfeboro: Wolfeboro C. B. Hellquist 1971-8-11
Plantaginaceae NEBC: 00745118 Callitriche heterophylla Pursh USA: Massachusetts Framingham: Framingham, Fisk Pond C. B. Hellquist 3184 1971-10-3
Polygonaceae GH: 02363294 Persicaria hydropiperoides (Michaux) Small USA: Indiana [data not captured] C. B. Hellquist 2165 1971-6-29
Pontederiaceae GH: 01919127 Heteranthera dubia MacMillan USA: New Jersey Passaic River, Summit C. B. Hellquist 187 1971-7-9
Potamogetonaceae NEBC: 01081321 Potamogeton obtusifolius Mertens & W. D. J. Koch USA: Massachusetts Billerica: Billerica, across from dump Pond ... C. B. Hellquist 1451 1971-6-10
NEBC: 00741115 Potamogeton ogdenii Hellquist & Hilton USA: Vermont Windsor: Windsor C. B. Hellquist 2315 1971-8-30
NEBC: 00700531 Potamogeton pusillus tenuissimus Mertens & Koch USA: New Hampshire Tuftonboro: Tuftonboro C. B. Hellquist 1971-8-25
NEBC: 00700536 Potamogeton pusillus tenuissimus Mertens & Koch USA: New Hampshire Ossipee: Ossipee C. B. Hellquist 82065 1971-8-16
NEBC: 00700537 Potamogeton pusillus tenuissimus Mertens & Koch USA: New Hampshire Ossipee: Ossipee C. B. Hellquist 2067 1971-8-16
NEBC: 00700538 Potamogeton pusillus tenuissimus Mertens & Koch USA: New Hampshire Ossipee: Ossipee C. B. Hellquist 2056 1971-8-11
NEBC: 00700539 Potamogeton pusillus tenuissimus Mertens & Koch USA: New Hampshire Freedom: Freedom C. B. Hellquist 1815 1971-8-4
NEBC: 00700540 Potamogeton pusillus tenuissimus Mertens & Koch USA: New Hampshire Effingham: Effingham C. B. Hellquist 1652 1971-7-22
NEBC: 00700541 Potamogeton pusillus tenuissimus Mertens & Koch USA: New Hampshire Effingham: Effingham C. B. Hellquist 1649 1971-7-22
NEBC: 00700542 Potamogeton pusillus tenuissimus Mertens & Koch USA: New Hampshire Eaton: Eaton C. B. Hellquist 2339 1971-9-2
GH: 01746400 Potamogeton richardsonii (A. Bennett) Rydberg USA: Minnesota [data not captured] C. B. Hellquist 2280 1971
NEBC: 01009870 Potamogeton zosteriformis Fernald USA: Massachusetts Concord: Concord River west of Rt. 225 C. B. Hellquist 3411 1971-9-22
GH: 01732991 Stuckenia pectinata (Linnaeus) Börner USA: Minnesota [data not captured] C. B. Hellquist 1441 1971
GH: 01732993 Stuckenia pectinata (Linnaeus) Börner USA: Minnesota [data not captured] C. B. Hellquist 2190 1971
Sparganiaceae NEBC: 00754119 Sparganium natans Linnaeus USA: New Hampshire Sandwich: Sandwich C. B. Hellquist 3726 1971-8-25
