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Hydrilla verticillata (L. f.) Royle
FLORIDA ELODEA
Hydrilla; Oxygen weed; Water thyme; Water weed; Hydilla; Serpicula verticillata Lf; Elodea verticillata Lf FMuell; Hydrilla dentata Casp; Udora australis FMuell sensu Mueller, FJH von 1854; Elodea nuttallii auct, non (Planch) H St John; Hydrilla lithuanica Dandy pro parte; Serpicula verticillata L f; Waterthyme; Water-Thyme

Life   Plantae   Monocotyledoneae   Hydrocharitaceae   Hydrilla

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Hydrilla verticillata
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Hydrilla verticillata
Hydrilla verticillata
© Les Mehrhoff, 2008-2010 · 2
Hydrilla verticillata
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&pull 20q v5.145 20180528: Error 404 Not Found http://tai2.ntu.edu.tw/udth/bin/fot1.exe/browse?bid=5&page=15

Following modified from Taiwan Biodiversity National Information Network
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Kingdom Plantae  
 Phylum Tracheophyta  
 Class Magnoliopsida  
 Order Alismatales  
 Family Hydrocharitaceae  
 Genus Hydrilla  
  Hydrilla verticillata    (L. f.) Royle 
Provider: Ching-I Peng 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Elodea verticillata Epigynanthus blumei Hydora lithuanica Hydrilla angustifolia Hydrilla dentata Hydrilla dentata pomeranica Hydrilla lithuanica Hydrilla najadifolia Hydrilla ovalifolia Hydrilla polysperma Hydrilla roxburghii details
Citation: Flora of Taiwan 2nd ed. 5: 15, 2000
Name Code: 201734
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http://plants.usda.gov/java/profile?symbol=HYVE3 ---> https://plants.usda.gov/java/profile?symbol=HYVE3
https://plants.usda.gov/java/profile?symbol=HYVE3 ---> http://plants.usda.gov/core/profile?symbol=HYVE3
http://plants.usda.gov/core/profile?symbol=HYVE3 ---> https://plants.usda.gov/core/profile?symbol=HYVE3
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Hydrilla verticillata (L. f.) Royle
waterthyme

Image of Hydrilla verticillata

General Information
Symbol: HYVE3
Group: Monocot
Family: Hydrocharitaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : L48   I
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

click on a thumbnail to view an image, or see all the Hydrilla thumbnails at the Plants Gallery

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Synonyms

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Alismatidae
Order Hydrocharitales
Family Hydrocharitaceae – Tape-grass family
Genus Hydrilla Rich. – hydrilla
Species Hydrilla verticillata (L. f.) Royle – waterthyme

Subordinate Taxa

This plant has no children

Legal Status

Noxious Weed Information
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds .
United States : hydrilla Noxious weed
Alabama hydrilla Class A noxious weed
Arizona hydrilla, Florida-elodea Prohibited noxious weed
California hydrilla A list (noxious weeds) hydrilla Noxious aquatic weed hydrilla Quarantine
Colorado hydrilla A list (noxious weeds)
Connecticut hydrilla Invasive, banned
Florida hydrilla, Florida elodea Prohibited aquatic plant, Class 1
Maine hydrilla Invasive aquatic plant
Massachusetts hydrilla Prohibited
Mississippi hydrilla Noxious weed
Nevada hydrilla Noxious weed
New Mexico hydrilla Class A noxious weed
North Carolina waterthyme Class A noxious weed
Oregon hydrilla "A" designated weed hydrilla Quarantine
South Carolina hydrilla Invasive aquatic plant hydrilla Plant pest
Texas hydrilla Noxious plant
Vermont hydrilla Class A noxious weed
Washington hydrilla Class A noxious weed hydrilla Wetland and aquatic weed quarantine
U.S. Weed Information
Hydrilla verticillata Florida elodea hydrilla water thyme This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
US USDA, Animal and Plant Health Inspection Service (APHIS), Plant Protection and Quarantine (PPQ). 2012. Federal noxious weed list (1 February 2012). USDA, APHIS, PPQ. Washington, DC.
STATE Assorted authors. State noxious weed lists for 46 states . State agriculture or natural resource departments.
Cal-IPC California Invasive Plant Council. 2006. California Invasive Plant Inventory. Cal-IPC Publication 2006-02 (1 February 2007). California Invasive Plant Council. Berkeley, California.
FLEPPC Florida Exotic Pest Plant Council. 1999. Invasive plant list . Florida Exotic Pest Plant Council. Florida.
SEEPPC Southeast Exotic Pest Plant Council. 1996. Invasive exotic pest plants in Tennessee (19 October 1999). Research Committee of the Tennessee Exotic Pest Plant Council. Tennessee.

Wetland Status

Interpreting Wetland Status

Top Level Regions
Caribbean OBL
Hawaii
South Pacific Islands OBL
North America
Arid West OBL
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL
Northcentral & Northeast OBL
Western Mountains, Valleys, and Coast OBL

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (HYVE3)
CalPhotos (HYVE3)
Flora of North America (HYVE3)
Integrated Taxonomic Information System (HYVE3)
Jepson Interchange (University of California - Berkeley) (HYVE3)
USF Atlas of Florida Vascular Plants (HYVE3)
University of Tennessee Herbarium (Distribution) (HYVE3)
Related Websites
ABI-America's Least Wanted (HYVE3)
Aquatic, Wetland and Invasive Plant Info. System: abstract & image (HYVE3)
Aquatic, Wetland and Invasive Plant Info. System: abstract & image (HYVE3)
CT-USDA NRCS Invasive Species Identification Sheets (HYVE3)
Cooperative Agriculture Pest Survey & NAPIS Page (HYVE3)
FL-Florida Exotic Pest Plant Council (HYVE3)
GU-Plant Threats to Pacific Ecosystems (HYVE3)
TNC Weeds on the Web (HYVE3)
TX-Biological Control of Weeds in Texas (TAMU) (HYVE3)
WA-King County Noxious Weeds (HYVE3)
WA-NonNative Freshwater Plants (HYVE3)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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Following modified from Flora of North America
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Link to Flora of North America home
 
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FNA Vol. 22 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 22 | Hydrocharitaceae | Hydrilla

1. Hydrilla verticillata (Linnaeus f.) Royle, Illustrations of the Botany ... of the Himalayan Mountains ... 1: 376. 1839.

Serpicula verticillata Linnaeus f., Suppl. Pl., 416. 1782

Rhizomes and erect stems with turions; subterranean turions cream-brown, appearing as tubers, surface smooth; turions from erect stems olive-green, covered with short, stiff scales. Leaves 8--15(--20) ´ 1.2--4 mm, margins serrulate. Inflorescences: spathe of 2 connate bracts. Flowers 1 per spathe; staminate pedicels 0.5 mm; pistillate flowers with floral tube 10--50 mm; ovary 1-locular. 2n = 32.

Flowering summer--fall. Lakes, streams, rivers, bayous; introduced; 0--200 m; introduced; Ala., Calif., Conn., Del., D.C., Fla., Ga., La., Md., Md., Miss., S.C., Tenn., Tex., Va.; Mexico; West Indies; Central America; South America (Venezuela); Eurasia; Africa; Australia.

Hydrilla verticillata apparently entered the United States in 1959 at Miami, Florida (D. F.F. Austin 1978). It was introduced as an aquarium plant, star-vine or oxygen plant (D. P. Tarver et al. 1978). By 1960 the species was reported as naturalized in Florida (G. E. Allen 1976).

Hydrilla verticillata is widely distributed in the Eastern Hemisphere but it is uncertain as to where it is truly native. It grows in a variety of aquatic habitats ranging from acidic to basic, oligotrophic to eutrophic, fresh to brackish, and from a few centimeters to a meter or more if light penetrates that deeply. Growth and spread often are rapid. Stem fragments become rooted by fine, unbranched adventitious roots and soon produce vegetative reproductive structures from both subterranean and erect stems. Tubers produced on subterranean stems are pale brown; those produced on erect stems are dark olive-green and covered with short, stiff scales. Both types germinate quickly to produce new stems.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Hydrilla+verticillata&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Hydrilla+verticillata&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 24
Query: SELECT * FROM img WHERE ready=1 and taxon like "Hydrilla verticillata%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0175 3301 2372 0026 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0175 3301 2372 0024 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0062 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0067 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0175 3301 2372 0023 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0055 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0175 3301 2372 0028 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0175 3301 2372 0027 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0063 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0070 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0175 3301 2372 0025 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0175 3301 2372 0022 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0175 3301 2372 0021 [detail]
© 2001 CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0066 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0068 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0093 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0064 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0069 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0057 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0059 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0072 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0056 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0058 [detail]
© CDFA

Hydrilla verticillata
Hydrilla verticillata
Hydrilla
ID: 0177 3303 3353 0065 [detail]
© CDFA

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