Central Sierra
University of California
Central Sierra

Aquatic Weeds

Item Number 1 - View Only This Item
Title Hydrilla mature plant, Hydrilla verticillata.
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Photo Information Family: Elodea (Hydrocharitaceae)
Scientific Name: Hydrilla verticillata
Crop or Host: Rice
Date of Image: 9-80
UC IPM Identifier: W-HC-HVER-MP.002
Notes: *LD3531
Photographer
Clark, Jack Kelly
Principal Photographer
Communication Services and Information Technology
Description Mature plant in palm showing small size, 1/5X; .
Item Number 2 - View Only This Item
Title Close-up of Hydrilla
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Photo Information Scientific Name: Hydrilla verticillata
Common Name: Hydrilla, Florida Elodea, Waterthyme
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S12-02.jpg
Categories:
Pest & Disease Management
Pest & Disease Management:Weeds
Notes: Hydrilla Close-up
Close-up of hydrilla stem segment with turions in the leaf axis.
Submerged or floating-leaved aquatic plants with roots within the soil sediment.
Federal Noxious Weed.
Photographer
Clark, Jack Kelly
Principal Photographer
Communication Services and Information Technology
Description Hydrilla Close-up: Aquatic and Riparian Weeds of the West
Item Number 3 - View Only This Item
Title Cross-section of Hydrilla Stem
Download Document size is: 40 KB
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Photo Information Scientific Name: Hydrilla verticillata
Common Name: Hydrilla, Florida Elodea, Waterthyme
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S12-03Y.jpg
Categories:
Pest & Disease Management
Pest & Disease Management:Weeds
Notes: Hydrilla Cross-section
Cross-section of hydrilla stem.
Submerged or floating-leaved aquatic plants with roots within the soil sediment.
Federal Noxious Weed.
Photographer
Clark, Jack Kelly
Principal Photographer
Communication Services and Information Technology
Description Hydrilla Cross-section: Aquatic and Riparian Weeds of the West
Item Number 4 - View Only This Item
Title Hydrilla
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Photo Information Scientific Name: Hydrilla verticillata
Common Name: Hydrilla, Florida Elodea, Waterthyme
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S12-01X.jpg
Categories:
Pest & Disease Management
Pest & Disease Management:Weeds
Notes: Hydrilla
Hydrilla stem section with developing tubers.
Submerged or floating-leaved aquatic plants with roots within the soil sediment.
Federal Noxious Weed.
Photographer
Clark, Jack Kelly
Principal Photographer
Communication Services and Information Technology
Description Hydrilla: Aquatic and Riparian Weeds of the West
Item Number 5 - View Only This Item
Title Smooth Frogbit
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Photo Information Scientific Name: Limnobium laevigatum
Common Name: Smooth Frogbit
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S04-06.jpg
Notes: Smooth Frogbit
Smooth frogbit plants.
Floating-leaved aquatic plants with roots in the water column.

Photographer: D.W. Kratville
Description Smooth Frogbit: Aquatic and Riparian Weeds of the West
Item Number 6 - View Only This Item
Title Smooth Frogbit
Download Document size is: 69 KB
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Photo Information Scientific Name: Limnobium laevigatum
Common Name: Smooth Frogbit
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S04-07.jpg
Categories:
Pest & Disease Management
Pest & Disease Management:Weeds
Notes: Smooth Frogbit
Smooth frogbit plant with mature leaves.
Floating-leaved aquatic plants with roots in the water column.

Photographer: D.W. Kratville
Description Smooth Frogbit: Aquatic and Riparian Weeds of the West
Item Number 7 - View Only This Item
Title Smooth Frogbit
Download Document size is: 99 KB
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Photo Information Scientific Name: Limnobium laevigatum
Common Name: Smooth Frogbit
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S04-05.jpg
Categories:
Pest & Disease Management
Pest & Disease Management:Weeds
Notes: Smooth Frogbit
Smooth frogbit young plants attached to stolon.
Floating-leaved aquatic plants with roots in the water column.

Photographer: D.W. Kratville
Description Smooth Frogbit: Aquatic and Riparian Weeds of the West
Item Number 8 - View Only This Item
Title Eurasian Watermilfoil Infestation
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Photo Information Scientific Name: Myriophyllum spicatum
Common Name: Eurasian Watermilfoil; Spike Watermilfoil
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S11-04.jpg
Notes: Eurasian Watermilfoil Infestation
Eurasian watermilfoil infestation in a pond.
Submerged or floating-leaved aquatic plants with roots within the soil sediment.
Photographer
DiTomaso, Joseph
CE Weed Specialist
Weed Science Program
Description Eurasian Watermilfoil Infestation: Aquatic and Riparian Weeds of the West
Item Number 9 - View Only This Item
Title Eurasian Watermilfoil Stems
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Photo Information Scientific Name: Myriophyllum spicatum
Common Name: Eurasian Watermilfoil; Spike Watermilfoil
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S11-05.jpg
Categories:
Pest & Disease Management
Pest & Disease Management:Weeds
Notes: Eurasian Watermilfoil Stems
Submerged or floating-leaved aquatic plants with roots within the soil sediment.

Photographer: W.J. McHenry
Description Eurasian Watermilfoil Stems: Aquatic and Riparian Weeds of the West
Item Number 10 - View Only This Item
Title Cross-section of Eurasian Watermilfoil Stem
Download Document size is: 82 KB
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Photo Information Scientific Name: Myriophyllum spicatum
Common Name: Eurasian Watermilfoil; Spike Watermilfoil
Resource: Joseph M. DiTomaso; Evelyn A. Healy
Source: Publication 3421
Media Library Number: S11-07.jpg
Categories:
Pest & Disease Management
Pest & Disease Management:Weeds
Notes: Plant Cross-section
Cross-section of Eurasian watermilfoil stem.
Submerged or floating-leaved aquatic plants with roots within the soil sediment.
Photographer
Clark, Jack Kelly
Principal Photographer
Communication Services and Information Technology
Description Plant Cross-section: Aquatic and Riparian Weeds of the West
Webmaster Email: cecentralsierra@ucdavis.edu