| Specimen ID | 213681 |
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| Group | Plants |
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| Genus | Hydrilla |
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| Species | verticillata |
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| Common Name | hydrilla |
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| State | VA |
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| County | Fairfax/Prince W |
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| Locality | Potomac River, from Alexandria to Gunston Cove, including Dogue Creek. |
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| HUC8 Name | Middle Potomac-Anacostia-Occoquan |
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| HUC8 Number | 2070010 |
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| Day | 0 |
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| Month | 0 |
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| Year | 1990 |
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| Year Accuracy (Specimen) | Actual |
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| Primary Pathway | Unknown |
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| Status | established |
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| Reference #1 | | Ref. Number | 10100 |
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| Author | Baker, D.P. |
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| date | 1991 |
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| title | Virginia seeks funds to cut hydrilla: closed harbors seen if state ends effort |
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| journal | Aquatic Plant News |
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| vol | 36 |
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| pages | 6 |
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|
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| Reference #2 | | Ref. Number | 10457 |
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| Author | Steward, K.K., T.K. Van, V. Carter and A.H. Pieterse. |
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| date | 1984 |
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| title | Hydrilla invades Washington, D.C and the Potomac. |
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| journal | American Journal of Botany |
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| vol | 71 |
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| pages | 162-163 |
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|
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| Verifier | |
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| Fresh/Marine Introduction | Freshwater |
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