salicaria in his own field work (~ 30 years) in coastal VA, but that a population on the Rappahannock was being monitored by the VA Department of Game and Inland Fisheries. James, York, Rappahannock Rivers - Silberhorne (1995) said that he had never seen L. salicaria appears to be confined to fresh and low-salinty waters, and generally occurs as scattered populations at low densities, often in disturbed areas. salicaria to 10% of its present abundance in most of North America (Malecki et al. A biological control program, now in progress, is hoped to reduce L. salicaria and its hybrid cultivars (Strefeler et al. Six states (MN, IL, IA, OH, WA, and WI) have banned or restricted the sale or cultivation of L. In the 1930's and 1940's, Lythrum salicaria in eastern Canada and the northeastern United States had begun to develop dense populations which were causing problems in agriculture and wildlife management (Thompson et al. Elsewhere in the world, Lythrum salicaria has been introduced to Australia, New Zealand, and Tasmania. Lythrum salicaria is abundant in the Hudson River valley, the Great Lakes basin, and the San Francisco Bay Delta (Cohen and Carlton 1995 Mills et al. salicaria were still strongly concentrated in the Northeast, with scattered records in the west to San Francisco CA, TX near the Gulf Coast and occurrences in TN, AL, and NC (Stuckey 1980 Thompson et al. Many separate introductions are likely (Stuckey 1980 Thompson et al. Ballast from coastal and transatlantic shipping, canals, roads, and railroads, as well as escape from cultivation, were all probable means of transport. Isolated West Coast populations were found in WA by 1931 and CA by 1948 (Stuckey 1980 Thompson et al. By 1900, it had spread westward to the Great Lakes, and southward to DE, DC, and NC. Lythrum salicaria reached Philadelphia by 1852. Gray (1848) gave its range as ME, MA, NY and Canada and considered it native. The first herbarium specimen is from New Bedford MA, 1831 (Stuckey 1980). Early records in North America are vague as to location of occurence. This plant may have been imported very early as a medical herb or ornamental (Thompson et al. Lythrum salicaria (Purple Loosestrife) is native to Eurasia from central Scandinavia to the Mediterranean, the northwest Mediterranean coast of Africa, portions of central Asia, China and Japan (Thompson et al.
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