hydrilla
noun
hy·dril·la
hī-ˈdri-lə 
: a freshwater aquatic Asian plant (Hydrilla verticillata of the Hydrocharitaceae family) that has small narrow leaves growing in whorls of three to eight around stems which become heavily branched near the water surface
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The mussels are moved from place to place in the ballast water of vessels, primarily through recreational boats, which also spread other aquatic pests and plants, such as hydrilla and water hyacinths, according to federal documents.
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Dinah Voyles Pulver, USA Today, 3 May 2026
The Connecticut Department of Energy and Environmental Protection also is in the fight against these plants, such as with its aquatic invasive species grant program that has been providing funding to combat invasive aquatic plants like hydrilla for over five years.
—Sean Krofssik, Hartford Courant, 29 Apr. 2026
Glyphosate is one of 18 herbicides that contractors hired by Florida’s wildlife agency can use for controlling invasive aquatic plants, such as hydrilla and water hyacinth.
—Lawrence Mower, Miami Herald, 26 Feb. 2026
Today, the Erie Canal remains vulnerable to invasive plants, such as water chestnut and hydrilla, and invasive animals such as round goby.
—Christine Keiner, The Conversation, 15 Oct. 2025
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Dinah Voyles Pulver, USA Today, 3 May 2026
The Connecticut Department of Energy and Environmental Protection also is in the fight against these plants, such as with its aquatic invasive species grant program that has been providing funding to combat invasive aquatic plants like hydrilla for over five years.
—Sean Krofssik, Hartford Courant, 29 Apr. 2026
Glyphosate is one of 18 herbicides that contractors hired by Florida’s wildlife agency can use for controlling invasive aquatic plants, such as hydrilla and water hyacinth.
—Lawrence Mower, Miami Herald, 26 Feb. 2026
Today, the Erie Canal remains vulnerable to invasive plants, such as water chestnut and hydrilla, and invasive animals such as round goby.
—Christine Keiner, The Conversation, 15 Oct. 2025
See All Example Sentences for hydrilla
Cite this Entry
“Hydrilla.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrilla. Accessed 16 May. 2026.
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