Characteristics
Monocots
Hydrilla verticillata (L.f.)Royle
WATERTHYME; HYDRILLA
**
The species has been divided into five subspecies, with subsp. verticillata being found in Florida (Tippery 2023).
Not Native
OBL (NWPL)
FISC(I)
**
Classification
Citation
HYDRILLA VERTICILLATA (Linnaeus f.) Royle, Ill. Bot. Himal. Mts. 1: 376. 1839.
Serpicula verticillata Linnaeus f. 1782.
INDIA: Without data (holotype: LINN 1106.1).
Species Distribution Map
Based on vouchered plant specimens from wild populations. Cultivated occurrences are not mapped. Click on a county to display its name.
Source
County
Herbaria
Literature Citation (If Applicable)
Alachua
FLAS
Brevard
USF
Broward
USF
Citrus
FLAS
Collier
FTG
DeSoto
USF
Duval
FLAS
Escambia
USF
Franklin
FSU
Gilchrist
FLAS
Synonyms
Synonym
Full Citation
Basionym
Type
Anacharis pomeranica
Anacharis pomeranica (Reichenbach) Petermann, Deutschl. Fl. 530. 1849.
BASIONYM: Udora pomeranica Reichenbach 1845.
Elodea verticillata
Elodea verticillata (Linnaeus f.) F. Mueller, Key Vict. Pl. 1: 423. 1888.
BASIONYM: Serpicula verticillata Linnaeus f. 1782.
Hottonia serrata
Hottonia serrata Willdenow, Sp. Pl. 1: 814. 1798.
TYPE: INDIA:
Hydora lithuanica
Hydora lithuanica (Besser ex Reichenbach) Andrzejowski ex Besser, Flora 15(2, Beibl.): 13. 1832.
BASIONYM: Udora lithuanica Besser ex Reichenbach 1831.
Hydrilla dentata var. pomeranica
Hydrilla dentata Caspary, var. pomeranica (Reichenbach) Caspary, Bot. Zeitung (Berlin) 11: 805. 1853.
BASIONYM: Udora pomeranica Reichenbach 1845.
Hydrilla lithuanica
Hydrilla lithuanica (Besser ex Reichenbach) Dandy, in Clapham et al., Fl. Brit. Isles 1183. 1952.
BASIONYM: Udora lithuanica Besser ex Reichenbach 1831.
Hydrilla najadifolia
Hydrilla najadifolia Zollinger & Moritzi ex Moritzi, Syst. Verz. 91. 1846.
TYPE: 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. 1814, nom. illegit.
BASIONYM: Serpicula verticillata Linnaeus f. 1782.
Hydrilla polysperma
Hydrilla polysperma Blatter, J. Proc. Asiat. Soc. Bengal, ser. 2. 26: 356. 1931.
TYPE: 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.
TYPE: INDIA: "in peninsula Indiae or.", s.d., Wight s.n. (holotype: K; isotype: BM).
Specimens and Distribution
Click on an Accession Number to view additional details about the specimen.
Counties listed:
Range of years during which specimens were collected:
Accession No.
Country
State
County
Collection Date
Collector & Collection No
Notes
Image
No specimens found
Plant Photos
