Ceratophyllaceae GH: 02073417 Ceratophyllum echinatum A. Gray Canada: Manitoba [data not captured] H. J. Scoggan 8724 1951-6-26
GH: 02073416 Ceratophyllum echinatum A. Gray Canada: Quebec Province [data not captured] J. L. C. M. Victorin 622 1914-8
GH: 02073415 Ceratophyllum echinatum A. Gray Canada: New Brunswick [data not captured] C. A. Weatherby & U. F. Weatherby 7285 1944-7-17
NEBC: 00834254 Ceratophyllum echinatum A. Gray USA: Maine Corinna: Corinna F. H. Steinmetz & G. P. Steinbauer 1118 1941-8-16
NEBC: 00834255 Ceratophyllum echinatum A. Gray USA: Maine Old Town: Old Town M. L. Fernald 2722 1898-9-7
GH: 00834256 Ceratophyllum echinatum A. Gray USA: Maine Biddeford: Biddeford G. G. Kennedy 1899-3-9
NEBC: 00834257 Ceratophyllum echinatum A. Gray USA: Maine Biddeford: Biddeford G. G. Kennedy 1899-3-9
NEBC: 00834258 Ceratophyllum echinatum A. Gray USA: Maine Unity: Unity E. G. Worthley 30106 1971-8-26
NEBC: 00834259 Ceratophyllum echinatum A. Gray USA: New Hampshire Winchester: Winchester D. E. Boufford & E. W. Wood 25701 1991-8-17
NEBC: 00834260 Ceratophyllum echinatum A. Gray USA: Massachusetts West Boxford C. B. Hellquist 14270 1980-5-6
NEBC: 00834261 Ceratophyllum echinatum A. Gray USA: Massachusetts North Andover: North Andover, Salem Pond, Ha... S. K. Harris 9500 1954-6-11
GH: 00834262 Ceratophyllum echinatum A. Gray USA: Massachusetts South Georgetown G. G. Kennedy 1906-5-19
NEBC: 00834263 Ceratophyllum echinatum A. Gray USA: Massachusetts Hamilton: Hamilton S. K. Harris 12805 1957-6-28
GH: 00834264 Ceratophyllum echinatum A. Gray USA: Massachusetts Lincoln: Lincoln, Beaver Pond J. M. Greenman 2148 1903-8-23
GH: 00834265 Ceratophyllum echinatum A. Gray USA: Massachusetts Tewksbury: Long Pond, Tewksbury A. N. Steward & L. B. Smith 456 1928-8-11
NEBC: 00834266 Ceratophyllum echinatum A. Gray USA: Massachusetts Grafton: Grafton B. N. Gates, W. C. Gates & F. C. S... 7051 1944-8-27
NEBC: 00834267 Ceratophyllum echinatum A. Gray USA: Massachusetts Tewksbury: Long Pond, Tewksbury A. N. Steward & L. B. Smith 456 1928-8-11
NEBC: 00834268 Ceratophyllum echinatum A. Gray USA: Massachusetts Weymouth Town F. C. Seymour 4159 1935-7-6
NEBC: 00834269 Ceratophyllum echinatum A. Gray USA: Massachusetts Sterling: Sterling R. I. Bertin 2172 2002-8-30
NEBC: 00834270 Ceratophyllum echinatum A. Gray USA: Massachusetts Upton: Upton B. N. Gates, W. C. Gates & F. C. S... 7024 1944-8-27
NEBC: 00834271 Ceratophyllum echinatum A. Gray USA: Massachusetts New Marlborough: New Marlborough P. B. Weatherbee 2113 1989-6-12
NEBC: 00834272 Ceratophyllum echinatum A. Gray USA: Rhode Island Providence: Providence G. H. Leland 1915-7-16
NEBC: 00834273 Ceratophyllum echinatum A. Gray USA: Connecticut Voluntown: Voluntown L. J. Mehrhoff 18798 1996-7-1
NEBC: 00834274 Ceratophyllum echinatum A. Gray USA: Connecticut East Haven: East Haven A. E. Blewitt 1979 1914-9-12
NEBC: 00834275 Ceratophyllum echinatum A. Gray USA: Connecticut Guilford: Guilford L. J. Mehrhoff 16455 1992-10-8
GH: 00834276 Ceratophyllum echinatum A. Gray USA: Connecticut Middlebury: Middlebury E. B. Harger 1899-7-13
GH: 00834277 Ceratophyllum echinatum A. Gray USA: Connecticut Middlebury: Middlebury E. B. Harger 1900-7-13
NEBC: 00834278 Ceratophyllum echinatum A. Gray USA: Connecticut Middlebury: Middlebury E. B. Harger 1899-7-13
NEBC: 00834279 Ceratophyllum echinatum A. Gray USA: Connecticut Woodbury: Woodbury E. B. Harger 5368 1908-8-8
GH: 00834280 Ceratophyllum echinatum A. Gray USA: Connecticut Bridgeport: Bridgeport E. H. Eames 1897-8-1
GH: 00834281 Ceratophyllum echinatum A. Gray USA: Connecticut Bridgeport: Bridgeport E. H. Eames 1897-8-1
NEBC: 00834282 Ceratophyllum echinatum A. Gray USA: Connecticut Bridgeport: Bridgeport E. H. Eames 1897-8-1
NEBC: 00834283 Ceratophyllum echinatum A. Gray USA: Connecticut Fairfield: Fairfield E. H. Eames 1905-7-26
GH: 02073444 Ceratophyllum echinatum A. Gray USA: Virginia [data not captured] M. L. Fernald & B. H. Long 12346 1940-7-10
GH: 02073443 Ceratophyllum echinatum A. Gray USA: Virginia Virginia Beach (Virginia): [data not capture... M. L. Fernald, L. Griscom & B. H. ... 4638 1935-6-17
GH: 02073442 Ceratophyllum echinatum A. Gray USA: Virginia Virginia Beach (Virginia): [data not capture... M. L. Fernald & B. H. Long 10642 1939-7-22
GH: 02073441 Ceratophyllum echinatum A. Gray USA: Texas [no additional data] C. Wright
GH: 02073440 Ceratophyllum echinatum A. Gray USA: South Carolina [data not captured] H. E. Ahles & C. R. Bell 12241 1956-5-8
GH: 02073439 Ceratophyllum echinatum A. Gray USA: Pennsylvania [data not captured] H. A. Wahl 18668 1958-7-29
GH: 02073438 Ceratophyllum echinatum A. Gray USA: Pennsylvania [data not captured] J. W. Adams 3733 1937-7-18
GH: 02073437 Ceratophyllum echinatum A. Gray USA: Pennsylvania [data not captured] H. A. Wahl 17565 1956-7-22
GH: 02073436 Ceratophyllum echinatum A. Gray USA: Pennsylvania [data not captured] F. B. Buser 11633 1978-7-29
GH: 02073435 Ceratophyllum echinatum A. Gray USA: Ohio [data not captured] R. J. Webb 1250 1913-7-27
GH: 02073434 Ceratophyllum echinatum A. Gray USA: Ohio [data not captured] M. L. Roberts 711 1970-8-13
GH: 02073433 Ceratophyllum echinatum A. Gray USA: Ohio [data not captured] M. L. Roberts 711 1970-8-13
GH: 02073432 Ceratophyllum echinatum A. Gray USA: North Carolina [data not captured] A. E. Radford 5210 1950-6-3
GH: 02073431 Ceratophyllum echinatum A. Gray USA: New York [data not captured] E. B. Chamberlain & E. L. Morris 11741 1911-9-17
GH: 02073430 Ceratophyllum echinatum A. Gray USA: New York [data not captured] S. H. Burnham 1899-8-15
GH: 02073429 Ceratophyllum echinatum A. Gray USA: New York [data not captured] R. T. Clausen [data not captured] 4427 1939-8-2
GH: 02073428 Ceratophyllum echinatum A. Gray USA: New York [data not captured] C. B. Hellquist 15562 1986-8-9
GH: 02073427 Ceratophyllum echinatum A. Gray USA: New Jersey [data not captured] C. B. Hellquist 4178 1972-6-2
GH: 02073426 Ceratophyllum echinatum A. Gray USA: Michigan [data not captured] C. B. Hellquist & R. R. Haynes 10870 1975-8-8
GH: 02073425 Ceratophyllum echinatum A. Gray USA: Michigan [data not captured] C. B. Hellquist 15499 1985-7-13
GH: 02073424 Ceratophyllum echinatum A. Gray USA: Michigan [data not captured] C. B. Hellquist & R. R. Haynes 10670A 1975-7-24
GH: 02073423 Ceratophyllum echinatum A. Gray USA: Michigan Isle Royale: [data not captured] W. S. Cooper 263 1910-8-23
GH: 02073422 Ceratophyllum echinatum A. Gray USA: Louisiana [data not captured] N. C. Fassett 28974 1951-12-27
GH: 02073421 Ceratophyllum echinatum A. Gray USA: Kansas McKinney Marsh, 1 mi. W., 2 mi. S. of Neosho... L. A. Hauser 3165 1976-8-17
GH: 02073420 Ceratophyllum echinatum A. Gray USA: Indiana [data not captured] C. B. Hellquist 9326 1974-6-6
GH: 02073419 Ceratophyllum echinatum A. Gray USA: Illinois [data not captured] H. N. Patterson
GH: 02073418 Ceratophyllum echinatum A. Gray USA: Georgia [data not captured] R. F. Thorne 1464 1946-7-12
GH: 01826117 Ceratophyllum echinatum A. Gray USA: New York [data not captured] R. F. C. Naczi [data not captured] 14445 2012-9-3
NEBC: 01583125 Ceratophyllum echinatum A. Gray USA: Massachusetts Westminster: Wachusett Mountain State Reserv... R. I. Bertin 8046 2019-9-20