Ceratophyllum demersum

Family:CERATOPHYLLACEAE
Species:Ceratophyllum demersum Linnaeus
Common Name:Coon's Tail; Common Hornwort
Habitat:Aquatic; slow moving or still water.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:**
Taxonomic Notes:**
Status:Native, OBL (NWI), G5 (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyCERATOPHYLLACEAE - Hornwort family
Genus Ceratophyllum
Species Ceratophyllum demersum Linnaeus - Coon's Tail; Common Hornwort

Citation

Citation CERATOPHYLLUM DEMERSUM Linnaeus, Sp. Pl. 992. 1753.
Basionym: **
Type: Cult. in Holland, Herb. Clifford 446(Ceratophyllum 1) (lectotype: BM). Lectotypified by Aziz, in Nasir & Ali, Fl. W. Pakistan 70: 4. 1974.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Ceratophyllum apiculatum Ceratophyllum apiculatum Chamisso, Linnaea 4: 505. 1829.  
Ceratophyllum asperum Ceratophyllum asperum Lamarck, Fl. Franc. 2: 196. 1779 ("1778"), nom. illegit.Ceratophyllum demersum Linnaeus 1753. 
Ceratophyllum cornutum Ceratophyllum cornutum Richard, Ann. Mus. Natl. Hist. Nat. 16: 299. 1810.  
Ceratophyllum demersum var. commune Ceratophyllum demersum Linnaeus, var. commune A. Gray, Manual, ed. 2. 383. 1856, nom. inadmiss.Ceratophyllum demersum Linnaeus 1753. 
Ceratophyllum demersum var. oxyacanthum Ceratophyllum demersum Linnaeus, var. oxyacanthum (Chamisso) K. Schumann, in Martius, Fl. Bras. 3(3): 748. 1894.Ceratophyllum oxyacanthum Chamisso 1829. 
Ceratophyllum oxyacanthum Ceratophyllum oxyacanthum Chamisso, Linnaea 4: 504. 1829.  
Ceratophyllum tricorne Ceratophyllum tricorne Dumortier, Fl. Belg. 165. 1827, nom. illegit.Ceratophyllum demersum Linnaeus 1753. 
Ceratophyllum tricuspidatum Ceratophyllum tricuspidatum Dumortier, Fl. Belg. 165. 1827. BELGIUM
Ceratophyllum unicorne Ceratophyllum unicorne Dumortier, Fl. Belg. 165. 1827. BELGIUM
Ceratophyllum verticillatum Ceratophyllum verticillatum Roxburgh, Fl. Ind. ed. 1832. 3: 624. 1832. INDIA
Ceratophyllum vulgare var. oxyacanthum Ceratophyllum vulgare Schleiden, var. oxyacanthum Schleiden, Linnaea 11: 541. 1837.  
Dichotophyllum demersum Dichotophyllum demersum (Linnaeus) Moench, Methodus 345. 1794.Ceratophyllum demersum Linnaeus 1753. 

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Baldwin, Barbour, Blount, Calhoun, Choctaw, Clarke, Colbert, Conecuh, Covington, Dale, Etowah, Greene, Hale, Houston, Jackson, Jefferson, Lauderdale, Lawrence, Lee, Limestone, Madison, Marengo, Marshall, Mobile, Montgomery, Morgan, Pike, Shelby, Sumter, Tuscaloosa, Wilcox

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AMAL, AUA, JSU, SAMF, TROY, UNA, UNAF, USAM, UWAL

Range of years during which specimens were collected: 1893 - 1997

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
TROY000032205 Montgomery 26 Aug 2010 Alvin R. Diamond
21535
TROY
Ceratophyllum demersum Linnaeus
UNA00030199 Choctaw 10 Jul 1979 Haynes, Robert R.
7433
UNA
Ceratophyllum demersum L.
UNAF0001538 Lauderdale 00 Jul 1979 Lancaster, David
01154
UNAF
Ceratophyllum demersum Linnaeus
UNA00047687 Barbour 20 Jun 1997 MacDonald, John R.
10745
UNA
Ceratophyllum demersum L.
AMAL00013839 Madison 07 Jun 1981 Kral, Robert
67337
AMAL
Ceratophyllum demersum Linnaeus
UWAL0001796 Montgomery 26 Aug 2010 Diamond, A.R.
21535
UWAL
Ceratophyllum demersum L.
UNA00011494 Madison 01 Aug 1978 Haynes, Robert R.
6829
UNA
Ceratophyllum demersum L.
UNA00030190 Clarke 02 Dec 1978 Davenport, Lawrence J.
949
UNA
Ceratophyllum demersum L.
JSU128289 Marshall 15 Jun 1992 Spaulding, Daniel D.
2064
JSU
Ceratophyllum demersum Linnaeus
UWAL0038278 Mobile 11 Oct 1975 LeLong, Michel G.
8824
UWAL
Ceratophyllum demersum Linnaeus
UWAL0008656 Madison 07 Jun 1981 Kral, R.
67337
UWAL
Ceratophyllum demersum L.
SAMF0000105 Shelby 22 May 1989 Davenport, Lawrence J.
2659
SAMF
Ceratophyllum demersum Linnaeus
UNA00030169 Choctaw 26 Jul 1978 Haynes, Robert R.
6770
UNA
Ceratophyllum demersum L.
UWAL0049553 Lawrence 11 Aug 2020 Webb, David H.
9108
UWAL
Ceratophyllum demersum L.
UWAL0017164 Lawrence 01 Aug 2006 England, J. Kevin
0622
UWAL
Ceratophyllum demersum Linnaeus
AUA_ACC010229 Lee 3 AUG 1962 SWINGLE, W. E.
AUA
CERATOPHYLLUM DEMERSUM L.
UNA00054115 Blount 10 May 1998 Keener, Brian R.
766
UNA
Ceratophyllum demersum L.
TROY000003735 Dale 13 Jun 2002 Alvin R. Diamond
13304
TROY
Ceratophyllum demersum Linnaeus
UWAL0049647 Lawrence 03 Oct 2019 Webb, David H.
8824
UWAL
Ceratophyllum demersum L.
UWAL0042921 Baldwin 03 Sep 2003 Larsen, H.S.
1257
UWAL
Ceratophyllum demersum L.
UNA00030175 Mobile s.d. Mohr, Charles
s.n.
UNA
Ceratophyllum demersum L.
USAM000003690 Clarke 24 Aug 1978 Burkhalter, James R.
6092
USAM
Ceratophyllum demersum Linnaeus
UWAL0008657 Marengo 08 Oct 2008 England, J. Kevin
1387
UWAL
Ceratophyllum demersum L.
UNA00026643 Tuscaloosa 10 Sep 1994 Methvin, B. Russell
124
UNA
Ceratophyllum demersum L.
JSU128288 Jefferson 22 Aug 1985 Barber, J. Patrick
1680
JSU
Ceratophyllum demersum Linnaeus
TROY000021217 Marengo 08 Oct 2008 J. Kevin England
1387
TROY
Ceratophyllum demersum Linnaeus
UNA00030180 Baldwin 05 Jun 1981 Horn, Charles N.
398
UNA
Ceratophyllum demersum L.
UNA00030185 Houston 12 Jul 1978 Davenport, Lawrence J.
551
UNA
Ceratophyllum demersum L.
JSU128291 Marshall 15 Sep 1991 Spaulding, Daniel D.
9648
JSU
Ceratophyllum demersum Linnaeus
AMAL00006343 Madison 08 Aug 1997 Spaulding, Daniel D.
9865
AMAL
Ceratophyllum demersum Linnaeus
UNA00030157 Hale 04 Aug 1980 Haynes, Robert R.
8062
UNA
Ceratophyllum demersum L.
AUA_ACC058779 Conecuh 30 JAN 1988 DIAMOND, JR., ALVIN R.
4103
AUA
CERATOPHYLLUM DEMERSUM L.
UNA00030184 Morgan 04 Jun 1979 Wiersema, John H.
798
UNA
Ceratophyllum demersum L.
AMAL00017184 Limestone 04 May 2007 Keener, Brian R.
3601
AMAL
Ceratophyllum demersum Linnaeus
TROY000003734 Covington 17 Jun 2002 Alvin R. Diamond
13345
TROY
Ceratophyllum demersum Linnaeus
UWAL0008658 Sumter 17 Jun 2000 Holland, Richard
AP00-16
UWAL
Ceratophyllum demersum L.
UNA00030152 Jackson 02 Aug 1978 Davenport, Lawrence J.
734
UNA
Ceratophyllum demersum L.
UWAL0047500 Calhoun 15 Jun 2018 Spaulding, Daniel D.
15404
UWAL
Ceratophyllum demersum L.
UWAL0008655 Limestone 04 May 2007 Keener, Brian R.
3586
UWAL
Ceratophyllum demersum L.
UNA00030164 Mobile 14 Jul 1893 Mohr, Charles
s.n.
UNA
Ceratophyllum demersum L.
UWAL0008653 Baldwin 21 Apr 1947 Lueth, Francis X.
L011
UWAL
Ceratophyllum demersum L.
UNA00060384 Covington 17 Jun 2002 Diamond, Alvin R.
13345
UNA
Ceratophyllum demersum L.
UWAL0039455 Colbert 11 Oct 2018 Webb, David H.
8622
UWAL
Ceratophyllum demersum L.
JSU128290 Marshall 30 Sep 1995 Spaulding, Daniel D.
7380
JSU
Ceratophyllum demersum Linnaeus
UNA00026710 Wilcox 26 Oct 1996 Ginzbarg, Steven L.
1041
UNA
Ceratophyllum demersum L.
UNA00030195 Baldwin 21 Apr 1947 Lueth, Francis X.
L11
UNA
Ceratophyllum demersum L.
AUA_ACC000441 Baldwin 18 JUL 1964 SNODDY, ED
AUA
CERATOPHYLLUM DEMERSUM L.
SAMF0000106 Jefferson 10 Jul 1986 Davenport, Lawrence J.
2465
SAMF
Ceratophyllum demersum Linnaeus
UWAL0008654 Limestone 04 May 2007 Keener, Brian R.
3601
UWAL
Ceratophyllum demersum L.
UNA00030174 Barbour 12 Jun 1979 Haynes, Robert R.
7221
UNA
Ceratophyllum demersum L.
UNA00067463 Limestone 27 Sep 2007 Webb, David
6694
UNA
Ceratophyllum demersum L.
UWAL0039415 Marshall 27 Jun 2018 Webb, David H.
8579
UWAL
Certophyllum demersum L.
AUA_ACC054554 Pike 17 JUN 1994 DIAMOND, JR., ALVIN R.
9238
AUA
CERATOPHYLLUM DEMERSUM L.
UNA00030179 Baldwin 07 Aug 1979 Davenport, Lawrence J.
1460
UNA
Ceratophyllum demersum L.
TROY000003733 Conecuh 08 Jul 2000 Alvin R. Diamond
11773
TROY
Ceratophyllum demersum Linnaeus
TROY000017856 Madison 07 Jun 1981 Robert Kral
67337
TROY
Ceratophyllum demersum Linnaeus
UWAL0049507 Colbert 01 May 2020 Webb, David H.
8908
UWAL
Ceratophyllum demersum L.
UNA00030189 Jackson 22 Aug 1982 Horn, Charles N.
567
UNA
Ceratophyllum demersum L.
UNA00023942 Jackson 07 Jul 1978 Haynes, Robert R.
6602
UNA
Ceratophyllum demersum L.
JSU128287 Etowah 31 Jul 1994 Hodge, Lesley M.
2933
JSU
Ceratophyllum demersum Linnaeus
UNA00030158 Choctaw 02 Dec 1978 Haynes, Robert R.
6995
UNA
Ceratophyllum demersum L.
USAM000003689 Mobile 11 Oct 1975 LeLong, Michel G.
8824
USAM
Ceratophyllum demersum Linnaeus
UNA00023348 Tuscaloosa 19 Oct 1992 Arant, Sandra
538
UNA
Ceratophyllum demersum L.
AUA_ACC001984 Lee 8 JUN 1962 GRAMLICH, JIM
AUA
CERATOPHYLLUM DEMERSUM L.
UWAL0019954 Morgan 15 Aug 2015 England, J. Kevin
5604
UWAL
Ceratophyllum demersum Linnaeus
TROY000047265 Mobile 11 Oct 1975 Michel G. Lelong
8824
TROY
Ceratophyllum demersum Linnaeus
AMAL00014917 Morgan 01 Jun 2007 Spaulding, Daniel D.
12640
AMAL
Ceratophyllum demersum Linnaeus
UNA00030142 Wilcox 04 Aug 1978 Haynes, Robert R.
6849
UNA
Ceratophyllum demersum L.
AUA_ACC041554 Conecuh 29 DEC 1985 DIAMOND, JR., ALVIN R.
2044
AUA
CERATOPHYLLUM DEMERSUM L.
UNA00030194 Marshall 07 Jul 1978 Wiersema, John H.
395
UNA
Ceratophyllum demersum L.
UNA00026637 Covington 15 Oct 1994 Mears, Carol
29
UNA
Ceratophyllum demersum L.
AUA000038185 Morgan 15 Aug 2015 ENGLAND, J. KEVIN
5604
AUA
CERATOPHYLLUM DEMERSUM L.
TROY000048406 Greene 26 Aug 2011 Brian R. Keener
6663
TROY
Ceratophyllum demersum Linnaeus
UWAL0034015 Greene 26 Aug 2011 Keener, Brian R.
6663
UWAL
Ceratophyllum demersum Linnaeus
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