Hydrilla verticillata

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:HYDROCHARITACEAE
Species:Hydrilla verticillata (L. f.) Royle
Common Name:Water Thyme; Hydrilla
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:A member of the Federal Noxious Weed list (24 May 2006).
Taxonomic Notes:**
Status:Not Native, OBL (NWI)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyHYDROCHARITACEAE - Tape-Grass family
Genus Hydrilla
Species Hydrilla verticillata (L. f.) Royle - Water Thyme; Hydrilla

Citation

Citation Hydrilla verticillata (Linnaeus f.) Royle, Ill. Bot. Himal. Mts. 1: 376. 1839.
Basionym: Serpicula verticillata L. f. 1781[1782].
Type: INDIA: Without data (holotype: LINN 1106.1).

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Anacharis pomeranica Anacharis pomeranica (Reichenbach) Petermann, Deutschl. Fl. 530. 1849.Udora pomeranica Reichenbach 1845. 
Elodea verticillata Elodea verticillata (Linnaeus f.) F. Mueller, Key Vict. Pl. 1: 423. 1888.Serpicula verticillata Linnaeus f. 1782. 
Hottonia serrata Hottonia serrata Willdenow, Sp. Pl. 1: 814. 1798. INDIA
Hydora lithuanica Hydora lithuanica (Besser ex Reichenbach) Andrzejowski ex Besser, Flora 15(2, Beibl.): 13. 1832.Udora lithuanica Besser ex Reichenbach 1831. 
Hydrilla dentata Hydrilla dentata Caspary, Bot. Zeitung (Berlin) 11: 805. 1853, nom. illegit.Serpicula verticillata Linnaeus f. 1782. 
Hydrilla dentata var. pomeranica Hydrilla dentata Caspary, var. pomeranica (Reichenbach) Caspary, Bot. Zeitung (Berlin) 11: 805. 1853.Udora pomeranica Reichenbach 1845. 
Hydrilla lithuanica Hydrilla lithuanica (Besser ex Reichenbach) Dandy, in Clapham et al., Fl. Brit. Isles 1183. 1952.Udora lithuanica Besser ex Reichenbach 1831. 
Hydrilla najadifolia Hydrilla najadifolia Zollinger & Moritzi ex Moritzi, Syst. Verz. 91. 1846. INDONESIA: Java: Tjikoya, 29 May 1842, Zollinger 125 (holotype: P; isotypes: BM, G, L).
Hydrilla ovalifolia Hydrilla ovalifolia Richard, Mém. Cl. Sci. Math. Nat. Hist. Inst. France 12(2): 9, 76, t. 2. 1814, nom. illegit.Serpicula verticillata Linnaeus f. 1782. 
Hydrilla polysperma Hydrilla polysperma Blatter, J. Proc. Asiat. Soc. Bengal, ser. 2. 26: 356. 1931. INDIA: Rajasthan: Mount Abu, Naki talao, Oct 1916, Hallberg & Blatter 11189 (holotype: BLAT?).
Hydrilla wightii Hydrilla wightii Planchon, Ann. Sci. Nat., Bot., ser. 3. 2: 79. 1849. INDIA: "in peninsula Indiae or.", s.d., Wight s.n. (holotype: K; isotype: BM).
Hydrospondylus submersus Hydrospondylus submersus Hasskarl, Flora 25(2, Beibl.): 33. 1842. INDONESIA: Java: "prope & intra hortorum Tjipannas" (holotype: L?).
Serpicula verticillata Serpicula verticillata Linnaeus f., Suppl. Pl. 416. 1782 ("1781"). INDIA: Without data (holotype: LINN 1106.1).
Udora lithuanica Udora lithuanica Besser ex Reichenbach, Fl. Germ. Excurs. 139. 1831. U.S.S.R.: Litva (S.S.R.): Vilnius, Lake Szuriuta (Szwinta), s.d. Besser s.n. (holotype: W; isotypes: BM, L, P).
Udora pomeranica Udora pomeranica Reichenbach, Icon. Fl. Germ. Helv. 7: 31, t. 59(104). 1845. POLAND: Szczecin (Stettin), Dammscher See, 1844, Reichenbach s.n. (holotype: W?; isotypes: G, P).
Udora verticillata Udora verticillata (Linnaeus f.) Sprengel, Syst. Veg. 1: 170. 1824 ("1825").Serpicula verticillata Linnaeus f. 1782. 

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, Choctaw, Clarke, Colbert, Covington, Geneva, Greene, Henry, Jackson, Jefferson, Lauderdale, Lawrence, Limestone, Madison, Marshall, Morgan, Pickens, Sumter

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: 1978 - 2018

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
SAMF0000403 Jackson 20 Oct 2005 Davenport, Lawrence J.
3376		 SAMF
Hydrilla verticillata (Linnaeus f.) Caspary
AUA_ACC_51567 Geneva 27 Jul 1989 Diamond, Alvin R.
6150		 AUA
Hydrilla Verticillata (L. F.) Royle
TROY000041622 Henry 27 Jul 2014 Diamond, Alvin R.
25379		 TROY
Hydrilla verticillata (Linnaeus f.) Royle
UWAL0049752 Limestone 28 Aug 2019 Webb, David H.
8734		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0049581 Jackson 24 Aug 1982 Webb, David H.
4664		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0049575 Limestone 28 Jul 2020 Webb, David H.
9043		 UWAL
Hydrilla verticillata (L.f.) Royle
USAM000007329 Choctaw 15 Nov 1978 Eubanks, Michael
s.n.		 USAM
Hydrilla verticillata (Linnaeus f.) Royle
UWAL0048110 Jackson 02 Sep 2009 Webb, David H.
7116		 UWAL
Hydrilla verticillata (L.f.) Royle
TROY000025683 Jackson 29 Jun 2002 Spaulding, Daniel D.
11432		 TROY
Hydrilla verticillata (Linnaeus f.) Caspary
SAMF0003167 Jackson 08 Sep 2015 Davenport, Lawrence J.
5947		 SAMF
Hydrilla verticillata (Linnaeus f.) Caspary
UNA00067458 Limestone 27 Sep 2007 Webb, David
6696		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0049749 Limestone 18 Sep 2019 Webb, David H.
8782		 UWAL
Hydrilla verticillata (L.f.) Royle
ALNHS00001676 Greene 07 Nov 2012 Barger, T. Wayne
SP#878		 ALNHS
Hydrilla verticillata (L. f.) Royale
UWAL0004758 Sumter 22 Aug 2010 Keener, Brian R.
6149		 UWAL
Hydrilla verticillata (L. f.) Royle
UWAL0049711 Limestone 30 Jul 1987 Webb, David H.
5279		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0039386 Limestone 27 Sep 2007 Webb, David H.
6696		 UWAL
Hydrilla verticillata (L.) Royle
UNA00059332 Jackson 29 Jun 2002 Spaulding, Daniel D.
11432		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0049648 Colbert 03 Oct 2019 Webb, David H.
8818		 UWAL
Hydrilla verticillata (L.f.) Royle
UNA00050293 Covington 20 May 1998 MacDonald, John R.
11220		 UNA
Hydrilla verticillata (L. f.) Royle
AMAL00000981 Jackson 29 Jun 2002 Spaulding, Daniel D.
11432		 AMAL
Hydrilla verticillata (L. F.) Royle
UNA00067459 Morgan 27 Sep 2007 Webb, David
6698		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0049580 Jackson 25 Aug 1982 Webb, David H.
4665		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0039402 Marshall 20 Jun 2017 Webb, David H.
8450		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0046914 Lauderdale 09 Oct 2008 Webb, David H.
6880		 UWAL
Hydrilla verticillata (L.f.) Royle
USAM000007328 Choctaw 24 Aug 1978 Burkhalter, James R.
6086		 USAM
Hydrilla verticillata (Linnaeus f.) Royle
UWAL0039454 Colbert 11 Oct 2018 Webb, David H.
8624		 UWAL
Hydrilla verticillata (L.f.) Royle
TROY000034160 Sumter 22 Aug 2010 Keener, Brian R.
6149		 TROY
Hydrilla verticillata (Linnaeus f.) Caspary
UWAL0004557 Sumter 06 Oct 2008 England, J. Kevin
1356		 UWAL
Hydrilla verticillata (L. f.) Royle
UNA00021548 Choctaw 02 Dec 1978 Haynes, Robert R.
7000		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0056491 Madison 16 Jun 2018 England, Kevin J.
9264		 UWAL
Hydrilla verticillata (L.F. ) Royle
UWAL0039475 Jackson 17 Sep 2014 Webb, David H.
8124		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0049577 Jackson 19 Aug 1982 Webb, David H.
4647		 UWAL
Hydrilla verticillata (L.f.) Royle
JSU114480 Jackson 19 Apr 1999 Brodeur, Kristin R.
1689		 JSU
Hydrilla verticillata (Linnaeus f.) Caspary
JSU114481 Jackson 6 Aug 1998 Brodeur, Kristin R.
1067		 JSU
Hydrilla verticillata (Linnaeus f.) Caspary
UWAL0047224 Marshall 06 Aug 2008 Webb, David H.
6797		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0052336 Lauderdale 08 Aug 2017 Keener, Brian R.
10345		 UWAL
Hydrilla verticillata (L.f.) Royle
UNA00068012 Colbert 24 Aug 2007 Webb, David
6683a		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0030274 Jackson 08 Sep 2015 Davenport, L.J.
5947		 UWAL
Hydrilla verticillata (L.f.) Caspary
JSU114482 Jackson 21 Sep 1997 Spaulding, Daniel D.
10080		 JSU
Hydrilla verticillata (Linnaeus f.) Caspary
UWAL0049582 Jackson 24 Aug 1982 Webb, David H.
4663		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0047150 Lauderdale 09 Oct 2008 Webb, David H.
6877		 UWAL
Hydrilla verticillata (L.f.) Royle
UNA00025175 Baldwin 31 Jul 1992 Haynes, Robert R.
9402		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0050555 Lauderdale 25 Aug 2018 Spaulding, Daniel D.
15633		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0039453 Colbert 11 Oct 2018 Webb, David H.
8623		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0043188 Baldwin 12 Sep 2003 Larsen, Harry S.
1256		 UWAL
Hydrilla verticillata (L.) Royle
UNA00068017 Colbert 24 Aug 2007 Webb, David
6681		 UNA
Hydrilla verticillata (L. f.) Royle
JSU114483 Marshall 21 Aug 1993 Spaulding, Daniel D.
4492		 JSU
Hydrilla verticillata (Linnaeus f.) Caspary
UWAL0046972 Colbert 09 Oct 2008 Webb, David H.
6876		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0049578 Marshall 26 Aug 1982 Webb, David H.
4662		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0016666 Henry 27 Jul 2014 Diamond, Alvin R.
25379		 UWAL
Hydrilla verticillata (Linnaeus f.) Royle
AMAL00020250 Greene 07 Nov 2012 Barger, T. Wayne
SP#878		 AMAL
Hydrilla verticillata (L.f.) Royle
UWAL0046971 Lauderdale 09 Oct 2008 Webb, David H.
6879		 UWAL
Hydrilla verticillata (L.f.) Royle
ALNHS00004151 Jackson 30 Aug 2016 Barger, T. Wayne
SP#2444		 ALNHS
Hydrilla verticillata (L. f.) Royle
UNA00067994 Lauderdale 24 Aug 2007 Webb, David
6683b		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0049729 Jackson 03 Oct 2015 Webb, David H.
8260		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0051793 Jackson 11 Aug 2018 Spaulding, Daniel D.
15555		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0046913 Lauderdale 01 Oct 2008 Webb, David H.
6853		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0049579 Jackson 20 Sep 1982 Webb, David H.
4692		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0049546 Lawrence 11 Aug 2020 Webb, David H.
9107		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0047223 Lauderdale 01 Oct 2008 Webb, David H.
6854		 UWAL
Hydrilla verticillata (L.f.) Royle
UNA00026557 Pickens 01 Oct 1996 Ginzbarg, Steven L.
1027		 UNA
Hydrilla verticillata (L. f.) Royle
UNA00067461 Limestone 27 Sep 2007 Webb, David
6696		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0049649 Colbert 03 Oct 2019 Webb, David H.
8825		 UWAL
Hydrilla verticillata (L.f.) Royle
AMAL00000980 Choctaw 02 Dec 1978 Haynes, Robert R.
7000		 AMAL
Hydrilla verticillata (L. F.) Royle
ALNHS00006319 Jackson 03 Jul 2018 Barger, T. Wayne
SP#3964		 ALNHS
Hydrilla verticillata (L. f.) Royle
UWAL0051779 Lawrence 19 Aug 2018 Spaulding, Daniel D.
15581		 UWAL
Hydrilla verticillata (L.f.) Royle
UWAL0039387 Lauderdale 24 Aug 2007 Webb, David H.
6683b		 UWAL
Hydrilla verticillata (L.) Royle
UNA00021543 Clarke 02 Dec 1978 Davenport, Lawrence J.
951		 UNA
Hydrilla verticillata (L. f.) Royle
UWAL0049905 Marshall 03 Aug 1988 Webb, David H.
5416		 UWAL
Hydrilla verticillata (L.f.) Royle
UNA00021544 Jefferson 09 May 1981 Horn, Charles N.
204		 UNA
Hydrilla verticillata (L. f.) Royle
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