T.Anderson APNI* . In the locales to which it has been introduced, it has often become the dominant plant species, outcompeting both native and previously established exotic species in addition to displacing other species which depend on the ecosystem. Volume 4, 2nd edition. $3.99. save hide report. Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. APHIS (Animal and Plant Health Inspection Service). Federal Noxious Weed Disseminules of the U.S. USA: USDA/APHIS/CDFA. Kasselmann, C. 1995. Nall. In addition, rinsing gear with hot water or steam may help in removing any additional non-visible organisms. Cabrera & G. Dawson Ruellia brasiliensis Spreng. More research items about this plant may be found at APIRS:. Hygrophila. Ludwigia repens has a 4-petaled yellow flower, blunt leaf tips, often has a purple pigment in the submersed leaves, and lacks flanges at the nodes (DCR, 2003). Don't buy from this seller. Each flower yields at least 6 seeds. Aquatics 2: 4-11. SC DNR (South Carolina Department of Natural Resources). Pesticides should always be used in a lawful manner, consistent with the product's label. 284. Osceola County. Hygrophila polysperma, also known as dwarf hygro, Indian waterweed and dwarf hygrophila is one of the hardiest aquarium plants available in the aquarium hobby. SUNY Oneonta, Biological Field Station, Oneonta, NY. Hygrophila is replacing Hydrilla in South Florida. It is primarily a submersed rooted plant, but can be emersed in shallow areas with smaller, darker leaves (Cuda and Sutton 2000). Journal of Aquatic Plant Management 38: 55-61. Haller. Nees is larger and more erect in habitat, with larger flowers in axillary clusters along the upper stems (UFL-IFAS, 2005). p. 95-96. The fruit is a narrow hairy capsule up to 9mm long, containing 20-30 seeds, each seed being approximately 0.4-0.62 mm long, 0.3-0.5 mm wide, and 0.002-0.06 mm thick. 20014. Is the aquatic weed hygrophila, Hygrophila polysperma (Polemoniales: Acanthaceae), a suitable target for classical biological control? How much time you want to spend on maintenance. Surveys conducted by Rixon et al. IUCN Species Survival Commission, Invasive Species Specialist Group. Hygrophila polysperma spreads via vegetative fragmentation and has a high regrowth potential from stem fragments (Spencer and Bowes 1985). Early detection and eradication are essential in the prevention of future invasions and spread of, Several publications have been produced in areas with, In several regions where aquatic invasives have established, governmental organizations have started requiring that recreationists drain all water and clean off all gear (boats, trailers, fishing equipment, etc.) 2005. Baton Rouge, USA: National Plant Data Center. Adventive distribution. Names and dates are hyperlinked to their relevant specimen records. Sutton, D.L., and P.M. Dingler. The whole shoot of the plant breaks off near the root crown in August and forms very dense floating mats, which can sink piece by piece, or all at once to form a new colony; new shoots regrow from the roots, and they grow slowly in winter (Hall et al. Hall, D.W., V.V. Aquatic Botany 77(3): 223-234. Nees Hygrophila longifolia Nees Hygrophila portoricensis Nees Hygrophila pubescens Nees Hygrophila rivularis (Schltdl.) http://www.lucidcentral.org/keys/FNW/FNW%20Disseminules%20Key/html/index.htm. Jacono, and J. Li. Wisconsin Department of Natural Resources Bureau of Science Services, Publication SS-1049 2009. Available at http://plants.ifas.ufl.edu/node/191. East Indian Hygrophila, Hygrophila polysperma (Roxb.) H. polysperma is continuing to expand its range and become more abundant. Entire margin winged; wing narrow or barely apparent. Wetland weeds: causes, cures, and compromises. Taxon, 29(2-3):347-367. Daniel, and M. Martinez. 660-661. Jacono, and J. Accessed 11 August 2014. Archived. Hygrophila polysperma has tiny white flowers that bloom on terminal spikes from September to November. Hygrophila polysperma (aquatic plant). Unfortunately, it has become a problematic invasive in Florida, but it works well in aquariums. In addition, the loss of recreational and aesthetic value associated with H. polysperma can also cause a decline in waterfront property values, as well as possible declines in tourism related revenue for the community (DCR, 2003). Available at http://www.mass.gov/eea/docs/dcr/watersupply/lakepond/factsheet/hygrophila.pdf. Aquatics 17(3):4,6,8,10. National Center for Environmental Assessment, Washington, DC. Interference competition between Ludwigia repens and Hygrophila polysperma: two morphologically similar aquatic plant species. United States Geological Survey - Nonindigenous Aquatic Species. http://plants.usda.gov, Alison Mikulyuk, Wisconsin Dept of Natural Resources, Science Operations Center, 2801 Progress Rd, Madison, WI 53716, USA, Michelle Nault, Wisconsin Department of Natural Resources, 2801 Progress Rd, Madison, WI 53716-3339, USA. First records of the aquatic weed Hygrophila polysperma (Acanthaceae) from Texas. Hygrophila polysperma 'Rosanervig' Aquarium plant with roots. Sutton, D.L. New Zealand: Federation of New Zealand Aquatic Societies. Detailed coverage of invasive species threatening livelihoods and the environment worldwide. Volume 4, 2nd edition Taipei, Tawain: National Science Council of the Republic of China, 660-661. Accessed [12/5/2020]. 2001. Propagated from cuttings. [SP37.] Federal Noxious Weed List. Florida Scientist 44(3): 189-192. Smart. See similar items ... BUNCHED HYGROPHILA POLYSPERMA AQUARIUM AQUATIC TROPICAL FISH TANK LIVE PLANTS . Journals of Aquatic Plant Management 39: 75-79. Nees. In 1979, reports of populations came from Able Canal, which drained the Caloosahatchee River in western Florida, as well as from Miramar and City of Margate Canals, which are part of the Everglades drainage in eastern Florida (USGS-NAS, 2003). Life cycle and phenology of hygrophila in relation to development of management strategies. Ruelli… http://edis.ifas.ufl.edu. USA: Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Bureau of Invasive Plant Management. Technical Bulletin of the Commonwealth Institute of Biological Control, No. Biological control of aquatic weeds. Massachussetts Department of Conservation and Recreation, 2003. Aquatics, 2:4-11. Decorative aquarium plants: Hygrophila polysperma (Roxburgh) T. Anderson. Available at http://www.dnr.sc.gov/invasiveweeds/img/hygrophila.pdf. 2003). Seeds compressed, obovate or elliptic to round, 0.4–0.62 mm long, 0.3–0.5 mm wide, 0.02–0.06 mm thick. http://plants.ifas.ufl.edu/seagrant/hygpol2.html. (2005) found that H. polysperma was available for purchase in 25% of the pet and aquarium stores surveyed near Lakes Erie and Ontario. Bergeron, A. Ricciardi, and H.J. Control of Hygrophila and other aquatic weeds in the Old Plantation Water Control District. 15:131-157, Scher J, 2007. Hygrophila fact sheet. Table 1. FNW taxon. Journal of Aquatic Plant Management, 23:7-16. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. Good planning is the key to success with your aquarium. PQR database. Available http://www.epa.gov/ncea. Description: Aquatic perennial herb in freshwater, occasionally prostrate along edges of watercourses. These Hygrophila species are not native to the United States (NGRP, 2014) and may pose a threat to the United States. Florida Scientist, 44(3):189-192. Movement of invasive aquatic plants into Minnesota (USA) through horticultural trade. Attachment of leaves is sessile, with the bases joined at the nodes by ciliated flanges of tissue. H. polysperma is declared a noxious weed in the United States (USDA-NRCS, 2006), and is currently well established in Florida and parts of Texas. Mail order, the internet, and invasive aquatic weeds. It is native to India and very easy to grow. Li., 2020, US Fish and Wildlife Service Ecological Risk Screening Summary for. Shoots on moist banks are very small, and resemble the submerged form after banks are flooded. 1. herbaceous perennial 2. amphibious, “obligate” (requiring a wet habitat) 3. in freshwaters, mostly submersed, partly emersed 4. growing from bottom to surface in water to 10 feet deep, or found creeping along edges 5. forming dense stands of stems in the water, later in the season breaking loose to form large floating mats 6. rarely, terrestrial growth form grows in moist soil (McCann) 7. flowering in fall and winter 8. rep… When several references are cited, they may give conflicting information on the status. H. polysperma was imported to the United States as ‘oriental ludwigia’ through the aquarium trade from India and Malaysia in 1945, and was first collected in 1965 as an escape from cultivation along a roadside north of Tampa, Florida (Les and Wunderlin, 1981), though it wasn’t correctly identified until 1977. 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