Home | About | Join / Sign In | Contacts   

Invasive.org - Center for Invasive Species and Ecosystem Health


hydrilla
Hydrilla verticillata (L. f.) Royle


Taxonomic Rank: Liliopsida > Hydrocharitales > Hydrocharitaceae > Hydrilla
Common Name Synonym(s): Florida elodea, water thyme, waterthyme
Category: Plants: Aquatic
Category: Plants: Forbs/Herbs

75 Records
View Images as Host
View Descriptions


0002158
0002158

growing tip
USDA ARS Archive

0002159
0002159

heavy infestation, the rapid underwater growth "pushes" a portion of the mat above the water, giving the reservoir a field-like appearance
USDA ARS Archive

0002160
0002160

subsoil turions (tubers) at the end of horizontal stolons. These asexual reproductive structures are resistant to herbicides, and allow for rapid recolonization of a treated site
USDA ARS Archive

0002161
0002161

Joe Balciunas surveying for hydrilla agents (August 1983) at Lake Dal. Of the four agents approved for release two were shipped from India.
USDA ARS Archive

1148070
1148070

Plant(s)
USDA APHIS PPQ Archive

1148116
1148116

Plant(s)
USDA APHIS PPQ Archive

1149120
1149120

Infestation
USDA APHIS PPQ Archive

1149124
1149124

Infestation
USDA APHIS PPQ Archive

1149125
1149125

Infestation
USDA APHIS PPQ Archive

1149126
1149126

Plant(s)
USDA APHIS PPQ Archive

1149127
1149127

Plant(s)
USDA APHIS PPQ Archive

1149128
1149128

Infestation
USDA APHIS PPQ Archive

1149129
1149129

Control
sprayer
USDA APHIS PPQ Archive

1299189
1299189

Plant(s)
Raghavan Charudattan

1624024
1624024

Infestation
Thick mats of introduced aquatic weeds interfere with recreational activities such as sailing and swimming.
Richard S. Hammerschlag

1624028
1624028

Infestation
Discovered in the Crystal River in south Florida in 1960.
Raghavan Charudattan

1624029
1624029

Plant(s)
Discovered in the Crystal River in south Florida in 1960.
Raghavan Charudattan

2122079
2122079

Plant(s)
Chris Evans

2122080
2122080

Plant(s)
Chris Evans

2122081
2122081

Plant(s)
Chris Evans

2132053
2132053

Dispersal

tangled on boat motor


Wilfredo Robles

2148040
2148040

Infestation
Michael Frank

3694013
3694013

Feature(s)
tubers
Tim Murphy

3694014
3694014

Infestation
Jolly pond - Clayton Co.
Tim Murphy

4064028
4064028

Wasissa Springs, Jefferson Co., Fla
James R. Allison

4064029
4064029

Infestation
James R. Allison

5274075
5274075

Plant(s)
Whole plants out of water
Leslie J. Mehrhoff

5274076
5274076

Plant(s)
Young plants
Leslie J. Mehrhoff

5274077
5274077

Plant(s)
Leslie J. Mehrhoff

5274078
5274078

Infestation
Leslie J. Mehrhoff

5274079
5274079

Plant(s)
Leslie J. Mehrhoff

5276057
5276057

Infestation
Tony Pernas

5307063
5307063

Seed(s)
Steve Hurst

5345046
5345046

Plant(s)
David J. Moorhead

5345047
5345047

Infestation
David J. Moorhead

5392216
5392216

Infestation

Infested river


John M. Randall

5396743
5396743

Foliage
Robert Vidéki

5396744
5396744

Foliage
Robert Vidéki

5396745
5396745

Foliage
Robert Vidéki

5396746
5396746

Foliage
Robert Vidéki

5396747
5396747

Foliage
Robert Vidéki

5396748
5396748

Foliage
Robert Vidéki

5396749
5396749

Foliage
Robert Vidéki

5396750
5396750

Foliage
Robert Vidéki

5396751
5396751

Foliage
Robert Vidéki

5396752
5396752

Foliage
Robert Vidéki

5396753
5396753

Foliage
Robert Vidéki

5396754
5396754

Foliage
Robert Vidéki

5396755
5396755

Foliage
Robert Vidéki

5399023
5399023

Habitat
Robert Vidéki

5399030
5399030

Habitat
Robert Vidéki

5399031
5399031

Habitat
Robert Vidéki

5399032
5399032

Plant(s)

habitat


Robert Vidéki

5399033
5399033

Plant(s)

habitat


Robert Vidéki

5399494
5399494

Root(s)

bulb


Robert Vidéki

5399495
5399495

Root(s)

bulb


Robert Vidéki

5399496
5399496

Root(s)

bulb


Robert Vidéki

5399497
5399497

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399498
5399498

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399499
5399499

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399513
5399513

Root(s)

bulb


Robert Vidéki

5399514
5399514

Root(s)

bulb


Robert Vidéki

5399531
5399531

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399532
5399532

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399533
5399533

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399534
5399534

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399535
5399535

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399536
5399536

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399537
5399537

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5399538
5399538

Twig(s)/Shoot(s)

sprout


Robert Vidéki

5400454
5400454

Plant(s)
Graves Lovell

5400455
5400455

Foliage
Graves Lovell

5400456
5400456

Foliage
Graves Lovell

5400457
5400457

Foliage
Graves Lovell

5400458
5400458

Plant(s)
Graves Lovell




Partners

forest service, aphis, csrees