Reference List

This list includes references used to derive specimen records.

Results also available in CSV (click to export table to spreadsheet)
Ref IDTypeAuthorDateTitle
29283 DatabaseAckerman, J. (director).2013University of Puerto Rico Herbarium (UPRRP)
16045 DatabaseAlexander, J., S. Markos, J. Yost, R.L. Moe, E. Dean, and M. Nazaire.2016Consortium of California Herbaria (CCH)
10646 Journal ArticleArmstron, W.P.1984Noteworthy Collections, California, Spirodela punctata.
10770 DatabaseAyers, T. (curator)2016Deaver Herbarium (NAU)
10389 BookBeal, E.O., and J.W. Thieret.1986Aquatic and Wetland Plants of Kentucky.
10379 BookBrown, E.T., and R. Athey.1992Vascular Plants of Kentucky an Annotated Checklist.
25610 DatabaseCalflora2021The Calflora Database: Information on California plants for education, research and conservation
24369 DatabaseCenter for Invasive Species and Ecosystem Health.2019EDDMapS: Early detection and distribution mapping system
10396 Journal ArticleDaubs, E.H.1962The occurrence of Spirodela oligorrhiza in the United States.
10551 Journal ArticleDavenport, L.J., and R.R. Haynes1981Aquatic and marsh plants of Alabama II. Arecidae.
10655 OtherDickinson, M.B.1991Interspecific competition, disturbance, and the maintenance of diversity in a community of small floating aquatic plants.
10661 DatabaseFarid, A. (curator).2018University of South Florida Herbarium (USF)
10702 DatabaseFlorida Museum of Natural History2021University of Florida Herbarium (FLAS)
10359 BookGabrielson, F.C., Jr., A.M. Malatino, and G.J. Santa Cruz.1980Correlation of seasonal variations in phosphorous and nitrogen species in Upper Black Warrior River with duckweed.
10674 DatabaseGodwin, W. (collections).2016S.R. Warner Herbarium (SHST)
10787 OtherHaber, E.2001USA Records of Hydrocharis morsus-ranae in the Collections of Agriculture and AgriFoods Canada, Central Experimental Farm, Ottawa, Ontario (DAO), from Invasive Plants of Canada Database, National Botanical Services, Ottawa.
10233 ReportHelton, R.J., and L.H. Hartmann.1996Statewide Aquatic Vegetation Survey Summary, 1995 Report.
10632 Journal ArticleHenry, R.D., and A.R. Scott1981Time of introduction of the alien component of the spontaneous Illinois vascular flora.
10542 Journal ArticleHill, S.R., and C.N. Horn.1997Additions to the Flora of South Carolina.
10766 DatabaseHong-Wa, C. (curator).2015Claude E. Phillips Herbarium (DOV)
10539 Journal ArticleJones, S.B., Jr.1974Mississippi Flora. I. Monocotyledon families with aquatic or wetland species.
10371 Journal ArticleLandolt, E.1981Distribution pattern of the family Lemnaceae in North Carolina.
10692 Journal ArticleLandolt, E.1986The family of Lemnaceae - a monographic study. Vol.1 in Biosystematic investigations in the family of duckweeds (Lemnaceae) (vol. 2).
19381 DatabaseMadsen, J.D., G. Ervin, V. Maddox, & C. Abbott.2010Invasive Plant Atlas of the MidSouth.
10397 BookMason, H.L.1957A flora of the marshes of California.
29204 DatabaseMcCormick, C. (curator).2016North Carolina Botanical Garden Herbarium (NCU)
10238 DatabaseMehrhoff, L.1996Hawaiian flowering plants checklist
27950 DatabaseMichigan State University Board of Trustees.2019Midwest Invasive Species Information Network (MISIN)
10342 BookMohlenbrock, R.H.1986Guide to the vascular flora of Illinois, rev. ed.
10765 ReportMontz, G.N.1979Distribution of selected aquatic species in Louisiana
13276 DatabaseNeel, M. (director), J. Hall (curator), and N. Anderson.2014Norton-Brown Herbarium (MARY)
13431 Journal ArticleNeill, A.K., and H.D. Wilson2001The vascular flora of Madison County, Texas.
10355 BookNelson, E.N., and R.W. Couch.1985Aquatic Plants of Oklahoma I: Submersed, Floating-leaved, and selected emergent macrophytes.
10518 DatabasePennsylvania Flora Database.2011Pennsylvania Flora Project
10714 DatabaseRegents of the University of California2015Jepsen online interchange for California floristics.
10373 Journal ArticleSaeger, A.1934Spirodela oligorrhiza collected in Missouri.
10395 Journal ArticleSaeger, A.1934Spirodela punctata collected in Missouri.
29284 DatabaseSantiago-Valentín, E. (director).2012Botanical Garden of the University of Puerto Rico Herbarium (UPR)
10599 DatabaseSasek, T. (curator), and D. Bell.2007University of Louisiana at Monroe Herbarium (NLU)
10335 Journal ArticleSimmons, M.P., D.M.E. Ware, and W.J. Hayden.1995The vascular flora of the Potomac River watershed of King George County, Virginia.
10298 BookSmith, E.B.1988An atlas and annotated list of the vascular plants of Arkansas.
10353 Journal ArticleSmith, L.1978Development of the emergent vegetation in a tropical marsh (Kawainui, I'ohu).
16075 DatabaseSmithsonian Institution2019United States National Herbarium (US)
27701 DatabaseTexas Invasive Plant and Pest Council.2018Texas Invasives Database
10497 BookThomas, R.D., and C.M. Allen.1993Atlas of the Vascular Flora of Louisiana. Vol I: Ferns and Fern Allies, Conifers, and Monocotyledons.
25944 DatabaseUeda, K., J. Belmonte, A. Shepard, P. Leary, and S.
17830 DatabaseUniversity of Florida Herbarium.2016Florida Museum of Natural History
10553 DatabaseUniversity of Georgia2021University of Georgia Herbarium (GA)
28698 ReportUS Environmental Protection Agency.2016National Wetland Condition Assessment: 2011 Technical Report. EPA-843-R-15-006
10002 DatabaseUSDA, NRCS.1997The PLANTS database (
10367 Journal ArticleWohler, J.R., I.M. Wohler, and R.T. Hartman1965The occurrence of Spirodela oligorrhiza in Western Pennsylvania.
10225 Web PageWunderlin, R.P., B.F. Hansen, and E.L. Bridges.1995Atlas of Florida Vascular Plants.
10724 BookYatskievych, G.1999Steyermark's Flora of Missouri, Vol 1.


The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/27/2023].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.