Specimen Information

Hygrophila polysperma
Hygrophila polysperma
(Indian swampweed)
Plants
Exotic

Specimen ID1247811
GroupPlants
GenusHygrophila
Speciespolysperma
Common NameIndian swampweed
StateVA
CountyRichmond City
LocalityRichmond area lakes
Mapping AccuracyApproximate
HUC8 NameLower James
HUC8 Number02080206
Map
+
Collection Year1957
Year AccuracyEstimated
Potential Pathwayescaped captivity research | released aquarium
Statusextirpated
Reference 1
Ref. Number:28656
Author:Schmitz, D.C., and L.E. Nall.
Date:1984
Title:Status of Hygrophila polysperma in Florida
Journal:Aquatics
Volume:6
Issue:3
Pages:11-14
Reference 2
Ref. Number:28651
Author:Reams, Jr., W.M.
Date:1953
Title:The occurrence and ontogeny of hydathodes in Hygrophila polysperma T. Anders.
Journal:New Phytologist
Volume:52
Issue:1
Pages:8-13
Comments"...Reams (1950, 1953) reported the plant species can tolerate freezing temperatures and he stated that it was established in Richmond, Virginia area lakes for 15 to 20 years until the Richmond area experienced extremely cold winter temperatures for prolonged periods in the early 1970's (personal communication, W. Reams, 1984, University of Richmond)"
Record TypeLiterature
Earliest Recordstate
Freshwater/MarineFreshwater


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Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/23/2024].

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