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Hydrilla
photo courtesy of J. Madsen
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Scientific Name |
Hydrilla verticillata (L.f.) Royle |
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Common Name |
Hydrilla |
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Family |
Hydrocharitaceae (Frogbit) |
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Class |
Monocot |
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Description |
Perenniating mostly from tubers, propogates from tubers, turions, root
crowns, and fragments; partially evergreen; white flowers |
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US Distribution |
Diocieous form: southeastern US, Texas, California. Monoecious form:
Maryland, North Carolina, Virginia, Delaware, California. |
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Worldwide Distribution |
Scattered subtropical regions: Australia, China, US, New Zealand;
native of China |
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Ecology |
Submersed in 1 up to 20 feet depth |
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Economic Importance |
Major nuisance impact on US systems ($8M/yr in Florida) |
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Ecological Importance |
Major impact on aquatic ecosystems |
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Notes |
Has both monoecious and diocieous forms; no sexual propogation in
diocieous form |
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