Chesapeake Bay Introduced Species Database


Hydrilla verticillata

Common name(s):
Hydrilla
Image courtesy of Paul Fofonoff.

Taxonomy:

Kingdom
Phylum
Class
Order
Family
Genus
Species
Plantae
Magnoliophyta
Liliopsida
Hydrocharitales
Hydrocharitaceae
Hydrilla
Hydrilla verticillata


Synonymy:



Potentially Misidentified As:

Elodea canadensis; Elodea nuttalli; Egeria densa


Common Names:

Hydrilla; 'Florida Elodea'; Indian Star Vine


Comments:

Hydrilla verticillata (Hydrilla) is a submersed plant (submersed aquatic vegetation).

Potentially Misidentified Species - Elodea nuttalli is regarded as a synonym of E. canadensis by some authors. Catling and Wojtas (1986) give criteria for separating it from E. canadensis, both are native.

Other Taxonomic Groupings - A genetic analysis (randon amplified polymorphic DNA) identified 5 clusters in world populations of H. verticillata: southeast Asian-United States dioecious, Indonesian dioecious, Australia, Korea-United States monoecious (Madeira et al. 1997). Both dioecious and monoecious populations occur in the United States The form found in Chesapeake Bay and adjacent states (NC-DE) is monoecious, and believed to be of Korean origin (Madeira et al. 1997; Steward et al. 1993).


This data was last modified on Tuesday, August 1st, 2006.
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