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Patuxent Research Refuge, Maryland
USFWS:PRR	Reynoutria japonica Houtt. PRR004425Bill Harms   91322016-04-17 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Little Patuxent River Trail; Little Patuxent River Trail, 39.0784 -76.7703, 27m Full Record Details
USFWS:PRR	Persicaria pensylvanica (L.) G. Maza PRR004476Bill Harms   94342016-09-24 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Old Skeet Range; Skeet Range, 39.068308 -76.777045, 48m Full Record Details
USFWS:PRR	Persicaria pensylvanica (L.) G. Maza PRR004477Bill Harms   94352016-09-24 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Old Skeet Range; Skeet Range, 39.068308 -76.777045, 48m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR004478Bill Harms   94362016-09-24 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Old Skeet Range; Skeet Range, 39.068308 -76.777045, 48m Full Record Details
USFWS:PRR	Persicaria perfoliata (L.) H. Gross PRR004606Bill Harms   83322014-07-09 United States, Maryland, Anne Arundel, Patuxent Research Refuge (USFWS), Savanna, east end; exact locality approximated, 39.079917 -76.795283, 68m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR004639Bill Harms   83662014-07-16 United States, Maryland, Anne Arundel, Patuxent Research Refuge (USFWS), Savanna middle portion; exact locality approximated, 39.0812 -76.799683, 70m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR004710Bill Harms   85132014-08-20 United States, Maryland, Anne Arundel, Patuxent Research Refuge (USFWS), McGilvreys Pond; exact locality approximated, 39.076883 -76.767317, 29m Full Record Details
USFWS:PRR	Persicaria perfoliata (L.) H. Gross PRR004714Bill Harms   85172014-08-20 United States, Maryland, Anne Arundel, Patuxent Research Refuge (USFWS), McGilvreys Pond; exact locality approximated, 39.076883 -76.767317, 29m Full Record Details
USFWS:PRR	Persicaria virginiana (L.) Gaertn. PRR004716Bill Harms   85192014-08-20 United States, Maryland, Anne Arundel, Patuxent Research Refuge (USFWS), McGilvreys Pond; exact locality approximated, 39.076883 -76.767317, 29m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR004730Bill Harms   85332014-08-20 United States, Maryland, Anne Arundel, Patuxent Research Refuge (USFWS), D/E Road, near summit; exact locality approximated, 39.0793 -76.754333, 42m Full Record Details
USFWS:PRR	Persicaria punctata (Elliott) Small PRR004733Bill Harms   85362014-08-20 United States, Maryland, Anne Arundel, Patuxent Research Refuge (USFWS), D/E Road, near summit; exact locality approximated, 39.0793 -76.754333, 42m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR003037Bill Harms   9627.52017-06-13 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Old Beltsville Airport; Northeast side of runway, 39.023781 -76.814371, 53m Full Record Details
USFWS:PRR	Rumex acetosella L. PRR003144Bill Harms   92432016-06-04 United States, Maryland, Prince George's, Patuxent Research Refuge--North Tract--Hunting Control Station; front of contact station by Bald Eagle Drive, 39.087313 -76.772436, 34m Full Record Details
USFWS:PRR	Polygonum aviculare L. PRR003210Bill Harms   96272017-06-13 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Old Beltsville Airport; east of landing strip, 39.023781 -76.814371, 53m Full Record Details
USFWS:PRR	Persicaria maculosa S. F. Gray PRR003220Bill Harms   96282017-06-13 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Old Beltsville Airport; east of landing strip, 39.023781 -76.814371, 53m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR004770Bill Harms   96882017-09-20 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Knowles Marsh 2; Service road between Knowles Marsh 1 and Knowles Marsh 2, 39.044882 -76.796592, 27m Full Record Details
USFWS:PRR	Rumex obtusifolius L. PRR004573Bill Harms   92542016-06-11 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--River Road West; River Road, near road to Uhler Pond, by Patuxent River, 39.056827 -76.816318, 35m Full Record Details
USFWS:PRR	Rumex obtusifolius L. PRR004574Bill Harms   92542016-06-11 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--River Road West; River Road, near road to Uhler Pond, by Patuxent River, 39.056827 -76.816318, 35m Full Record Details
USFWS:PRR	Rumex acetosella L. PRR004846Bill Harms   88932015-05-22 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Savanna Area; Savanna area, east of Pitch Pine Grove, 39.083686 -76.803967, 75m Full Record Details
USFWS:PRR	Persicaria maculosa S. F. Gray PRR004856Bill Harms   90942015-07-08 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Tertiary Wastewater Treatment Facility; Tertiary Wastewater Treatment area, next to National Wildlife Visitors Center, 39.026593 -76.801273, 40m Full Record Details
USFWS:PRR	Rumex acetosella L. PRR004950Bill Harms   97862018-06-09 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Savanna Area; W end, 39.08414 -76.80431, 76m Full Record Details
USFWS:PRR	Fallopia scandens (L.) Holub PRR000675Bill Harms   98672018-09-11 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Duvall Bridge Road BGE Power Line Area; about 1500 feet NW of Duvall Bridge Road, 39.051822 -76.780332, 46m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR005116Bill Harms   100232019-06-27 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Duvall Bridge Road Loop; west end of southern loop road, 39.047948 -76.786058, 27m Full Record Details
USFWS:PRR	Persicaria densiflora (Meisn.) Moldenke PRR005194Bill Harms   100512019-08-23 United States, Maryland, Anne Arundel, Patuxent Research Refuge--Central Tract--Old Sewage Lagoon; West side, 39.055844 -76.823268, 58m Full Record Details
USFWS:PRR	Persicaria sagittata (L.) H. Gross PRR005197Bill Harms   100542019-08-23 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Knowles Marsh 2; Northeast Corner of Marsh, 39.045243 -76.7918, 26m Full Record Details
USFWS:PRR	Persicaria perfoliata (L.) H. Gross PRR005214Bill Harms   100702019-08-29 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Knowles Marsh 2; Northeast Corner of Marsh, 39.045176 -76.791852, 25m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR005233Bill Harms   100852019-10-05 United States, Maryland, Anne Arundel, Patuxent Research Refuge--Mill Race Road East; 1875 feet north of Duvall Bridge, 39.049745 -76.78849, 28m Full Record Details
USFWS:PRR	Persicaria arifolia (L.) Haraldson PRR005235Bill Harms   100872019-10-05 United States, Maryland, Anne Arundel, Patuxent Research Refuge--Mill Race Road East; 1875 feet north of Duvall Bridge, 39.049745 -76.78849, 28m Full Record Details
USFWS:PRR	Persicaria Mill. PRR005315Bill Harms   101712020-10-14 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Reddington Lake Area; Between Telegraph Road and the lake, 39.025281 -76.800774, 36m Full Record Details
USFWS:PRR	Persicaria arifolia (L.) Harolds. PRR002244N. Hotchkiss   56741937-09-21 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract; Along Patuxent River, 39.046564 -76.796692, 26m Full Record Details
USFWS:PRR	Polygonum aviculare L. PRR002245N. Hotchkiss   57051937-09-22 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR002246R. E. Stewart   s.n.1954-09-14 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--River Road West; Plot 2704, 39.06425 -76.81383, 29m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR002247F. M. Uhler   s.n.1961-10-24 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--River Road East; Along Patuxent River, Bottomland Road, 39.0548 -76.80151, 28m Full Record Details
USFWS:PRR	Fallopia convolvulus (L.) A. Löve PRR002248N. Hotchkiss   72931950-07-12 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Endangered Species Research Area; Plot 5445, 39.03759 -76.78173, 28m Full Record Details
USFWS:PRR	Persicaria densiflora (Meisn.) Moldenke PRR002249N. Hotchkiss   78411962-09-14 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Knowles Marsh 1; Knowles Unit 1, 39.04573929 -76.79687977, 26m Full Record Details
USFWS:PRR	Persicaria densiflora (Meisn.) Moldenke PRR002250F. M. Uhler   s.n.1959-08-19 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Old Sewage Lagoon; West end of Sewage Lagoon, 39.055595 -76.822959, 59m Full Record Details
USFWS:PRR	Polygonum erectum L. PRR002251N. Hotchkiss   57121937-09-29 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Snowden Hall Area; Snowden Hall, 39.0537 -76.8184, 60m Full Record Details
USFWS:PRR	Persicaria hydropiper (L.) Spach PRR002252F. M. Uhler   s.n.1965-09-09 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Endangered Species Research Area; Farm Pond, 39.035692 -76.785814, 33m Full Record Details
USFWS:PRR	Persicaria hydropiper (L.) Spach PRR002253N. Hotchkiss   53791937-07-28 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--South of Duvall Bridge; South of Duvall Bridge, 39.04502 -76.788666, 23m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR002254N. Hotchkiss   53231937-07-16 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract; below "shop" house, 39.046564 -76.796692, 26m Full Record Details
USFWS:PRR	Persicaria lapathifolia (L.) Delarbre PRR002255F. M. Uhler   s.n.1952-09-16 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Endangered Species Research Area; 'A' Farm, along northeast side of upper storage barn, 39.037466 -76.78638, 34m Full Record Details
USFWS:PRR	Persicaria orientalis (L.) Assenov PRR002256F. M. Uhler   s.n.1973-10-27 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Knowles Marsh 1; Knowles Marsh 1, North Side, 39.04573929 -76.79687977, 26m Full Record Details
USFWS:PRR	Persicaria orientalis (L.) Assenov PRR002257N. Hotchkiss   60931938-10-08 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Cash Lake Bay; East Bay at Cash Lake, 39.029493 -76.789936, 32m Full Record Details
USFWS:PRR	Persicaria pensylvanica (L.) G. Maza PRR002258N. Hotchkiss   55361937-09-13 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Persicaria maculosa S. F. Gray PRR002259N. Hotchkiss   55301937-09-13 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Persicaria maculosa S. F. Gray PRR002260N. Hotchkiss   54571937-08-09 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Snowden Hall Area; Snowden Hall, 39.0537 -76.8184, 60m Full Record Details
USFWS:PRR	Persicaria punctata (Elliot) Small PRR002261F. M. Uhler   s.n.1970-09-11 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Uhler Marsh 1; R & East experimental area, 39.0566 -76.8144, 33m Full Record Details
USFWS:PRR	Persicaria punctata (Elliot) Small PRR002262N. Hotchkiss   55441937-09-13 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Persicaria punctata (Elliot) Small PRR002263N. Hotchkiss   54691937-08-18 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Persicaria punctata (Elliot) Small PRR002264F. M. Uhler   s.n.1966-09-19 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Knowles Marsh 3; Knowles Marsh Unit 3, 39.04311118 -76.79185867, 26m Full Record Details
USFWS:PRR	Persicaria punctata (Elliott) Small PRR002265F. M. Uhler   s.n.1952-09-16 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Cash Lake; West side of south end of Cash Lake, 39.03125 -76.79409, 32m Full Record Details
USFWS:PRR	Persicaria sagittata (L.) Gross. PRR002266N. Hotchkiss   55451937-09-13 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Fallopia scandens (L.) Holub PRR002267N. Hotchkiss   60801938-10-01 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract; Along Patuxent River, 39.046564 -76.796692, 26m Full Record Details
USFWS:PRR	Fallopia scandens (L.) Holub PRR002268N. Hotchkiss   55431937-09-13 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Fallopia scandens (L.) Holub PRR002269N. Hotchkiss   55981937-09-14 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Polygonum tenue Michx. PRR002270William H. Stickel   s.n.1942-08-09 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Hobbs Pond Area; Plot 5507, ne of Kluckhuhn Place, 39.043 -76.779, 23m Full Record Details
USFWS:PRR	Rumex acetosella L. PRR002271N. Hotchkiss   51281937-05-17 United States, Maryland, Prince George's, Patuxent Research Refuge; uncertain, 39.0445 -76.789, 25m Full Record Details
USFWS:PRR	Rumex crispus subsp. crispus PRR002272F. M. Uhler   s.n.1941-07-04 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Beech Forest Drive Powerline Area; Along Service Road near log cabin, 39.04823 -76.80658, 44m Full Record Details
USFWS:PRR	Rumex obtusifolius L. PRR002273N. Hotchkiss   53841937-07-28 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--South of Duvall Bridge; South of Duvall Bridge, 39.04502 -76.788666, 23m Full Record Details
USFWS:PRR	Rumex obtusifolius L. PRR002274N. Hotchkiss   57301937-10-08 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract; Farm road half a mile South of Duvall Bridge, 39.046564 -76.796692, 26m Full Record Details
USFWS:PRR	Persicaria virginiana (L.) Gaertn. PRR002275N. Hotchkiss   54391937-08-09 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract; Along Patuxent River, 39.046564 -76.796692, 26m Full Record Details
USFWS:PRR	Persicaria arifolia (L.) Harolds. PRR003153Matt Perry   s.n.1984-09-19 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--River Road East; Snowden Creek Delta, 39.051655 -76.79855, 27m Full Record Details
USFWS:PRR	Persicaria perfoliata (L.) H. Gross PRR003155Matt Perry   s.n.1989-09-11 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Gabrielson Building Area; Gabrielson Lab Drain, 39.0547 -76.81664, 48m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR003156Matt Perry   s.n.1984-09-06 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--River Road East; Bottom Road, 39.05772 -76.80297, 28m Full Record Details
USFWS:PRR	Rumex crispus subsp. crispus PRR003182Matt Perry   s.n.1985-06-05 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Headquarters Area; Service Building Field, 39.05479112 -76.81895971, 57m Full Record Details
USFWS:PRR	Polygonum aviculare L. PRR003241Bill Harms   79952013-06-29 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Merganser Pond/Wildlife Viewing Area; Wildlife Viewing Area, Wildflower Garden, 39.072468 -76.775501, 43m Full Record Details
USFWS:PRR	Rumex obtusifolius L. PRR003286Bill Harms   78542013-05-29 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Merganser Pond/Wildlife Viewing Area; Wildlife Viewing Area, Wildflower Garden, 39.072348 -76.775492, 43m Full Record Details
USFWS:PRR	Persicaria maculosa S. F. Gray PRR003297Bill Harms   78882013-06-05 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Merganser Pond/Wildlife Viewing Area; Wildlife Viewing Area, Wildflower Garden, 39.0725 -76.7754, 43m Full Record Details
USFWS:PRR	Persicaria sagittata (L.) Gross. PRR003311Bill Harms   81872013-09-07 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Mill Race Swamp; South corner of Mill Race Swamp, 39.0536811 -76.7927961, 28m Full Record Details
USFWS:PRR	Fallopia scandens (L.) Holub PRR003312Bill Harms   82212013-09-13 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Thomas Branch Swamp area; Thomas Branch Swamp, BGE Powerline Right-of-Way Access Road, 5200 feet northwest of Duvall Bridge Road, 39.059239 -76.788683, 32m Full Record Details
USFWS:PRR	Persicaria arifolia (L.) Haraldson PRR003316Bill Harms   81862013-09-07 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Mill Race Swamp; Southwest edge of Mill Race Swamp, 39.0555639 -76.7948956, 28m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR003317Bill Harms   81852013-09-07 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Mill Race Swamp; Southwest edge of Mill Race Swamp, 39.0555639 -76.7948956, 28m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR003348Bill Harms   81582013-09-04 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--National Wildlife Visitor Center; Schoolyard Habitat, 39.026721 -76.798902, 40m Full Record Details
USFWS:PRR	Persicaria hydropiper (L.) Spach PRR003422Bill Harms   80902013-08-03 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Firing Range 1; Range 1, 900 feet south of Range Contact Station, 39.082825 -76.724109, 36m Full Record Details
USFWS:PRR	Persicaria hydropiper (L.) Spach PRR003632Bill Harms   75052012-08-27 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Bailey Bridge; Bailey Bridge North side of River, 39.060939 -76.737405, 23m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR003900Bill Harms   85772014-08-30 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Wild Turkey Way East; Along Wild Turkey Way, 600 feet west of Kingfisher Road, 39.072706 -76.784619, 56m Full Record Details
USFWS:PRR	Fallopia scandens (L.) Holub PRR003915Bill Harms   85982014-09-11 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Duvall Bridge Road BGE Power Line Area; BGE Power Line Right-of-way Access Road, 1400 feet northwest of Duvall Bridge Road, 39.052276 -76.781014, 45m Full Record Details
USFWS:PRR	Persicaria lapathifolia (L.) Delarbre PRR003980Bill Harms   87302014-10-05 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Lake Allen; East part of Lake Allen, 500 feet north of dam, 39.082756 -76.732775, 34m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR004001Bill Harms   87552014-10-13 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Little Patuxent River Trail; Little Patuxent River Trail, 39.077963 -76.770526, 30m Full Record Details
USFWS:PRR	Persicaria hydropiper (L.) Spach PRR004002Bill Harms   87542014-10-13 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Little Patuxent River Trail; Little Patuxent River Trail, 39.077963 -76.770526, 30m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR004004Bill Harms   87572014-10-16 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Lake Allen; Southwest part of Lake Allen, 39.081874 -76.733406, 34m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR004005Bill Harms   87582014-10-16 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Lake Allen; Southwest part of Lake Allen, 39.081874 -76.733406, 34m Full Record Details
USFWS:PRR	Persicaria lapathifolia (L.) Delarbre PRR004006Bill Harms   87592014-10-16 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Lake Allen; Southwest part of Lake Allen, 39.081874 -76.733406, 34m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR004007Bill Harms   87602014-10-16 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Lake Allen; Southwest part of Lake Allen, 39.081874 -76.733406, 34m Full Record Details
USFWS:PRR	Persicaria lapathifolia (L.) Delarbre PRR004008Bill Harms   87612014-10-16 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Lake Allen; Southwest part of Lake Allen, 39.081874 -76.733406, 34m Full Record Details
USFWS:PRR	Persicaria pensylvanica (L.) G. Maza PRR004009Bill Harms   87622014-10-16 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Lake Allen; Southwest part of Lake Allen, 39.081874 -76.733406, 34m Full Record Details
USFWS:PRR	Rumex acetosella L. PRR004270Ann Coren   132015-05-26 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--National Wildlife Visitor Center; Front of Visitor Center, 39.026592 -76.799134, 40m Full Record Details
USFWS:PRR	Rumex obtusifolius L. PRR004271Ann Coren   142015-05-26 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--National Wildlife Visitor Center; Front of Visitor Center, 39.026592 -76.799134, 40m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR004376Bill Harms   90932015-07-08 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Tertiary Wastewater Treatment Facility; Tertiary Wastewater Treatment area, next to National Wildlife Visitors Center, 39.026593 -76.801273, 40m Full Record Details
USFWS:PRR	Persicaria perfoliata (L.) H. Gross PRR004377Bill Harms   90922015-07-08 United States, Maryland, Prince George's, Patuxent Research Refuge--South Tract--Tertiary Wastewater Treatment Facility; Tertiary Wastewater Treatment area, next to National Wildlife Visitors Center, 39.026593 -76.801273, 40m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR004392Bill Harms   93562016-08-11 United States, Maryland, Prince George's, Patuxent Research Refuge--Central Tract--Uhler Marsh 1; North side of Uhler Marsh 1, 39.0566 -76.8144, 33m Full Record Details
USFWS:PRR	Persicaria hydropiperoides (Michx.) Small PRR000636Bill Harms   67082011-06-25 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Bullfrog and Kingfisher Ponds area; West side of Kingfisher Pond, 1100 feet north of north road on Secret Service Range, 39.0597 -76.7447, 25m Full Record Details
USFWS:PRR	Reynoutria japonica Houtt. PRR000637Bill Harms   66792011-06-18 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Little Patuxent River Trail; Little Patuxent River Trail, 39.0784 -76.7703, 27m Full Record Details
USFWS:PRR	Persicaria arifolia (L.) Harolds. PRR000638Bill Harms   69132011-08-18 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Lake Allen; Lake Allen jetty, 575 feet southeast of Wildlife Loop, 39.084007 -76.73338, 35m Full Record Details
USFWS:PRR	Fallopia scandens (L.) Holub PRR000639Bill Harms   69882011-08-31 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Athletic Field Area; Ft Meade Road, southside of road, west Bank near Bridge of Little Patuxent River, 39.0919 -76.7688, 32m Full Record Details
USFWS:PRR	Polygonum erectum L. PRR000640Bill Harms   65182011-05-18 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Athletic Field Area; Athletic field parking lot by Fort Meade Road (MD 198), 39.0915 -76.7701, 33m Full Record Details
USFWS:PRR	Rumex crispus subsp. crispus PRR000641Bill Harms   64672011-05-11 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Visitors Contact Station Area; North Tract Visitors Contact Station, south side of building, 39.077654 -76.771727, 34m Full Record Details
USFWS:PRR	Rumex acetosella L. PRR000642Bill Harms   63082011-04-20 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Duvall Bridge Road BGE Power Line Area; BGE Power Line Right-of-way Access Road, 2200 feet northwest of Duvall Bridge Road, 39.053604 -76.782722, 43m Full Record Details
USFWS:PRR	Persicaria sagittata (L.) Gross. PRR000643Bill Harms   66812011-06-18 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Little Patuxent River Trail; Little Patuxent River Trail, 39.0784 -76.7703, 27m Full Record Details
USFWS:PRR	Persicaria longiseta (Bruijn) Kitag. PRR000644Bill Harms   70952011-09-30 United States, Maryland, Anne Arundel, Patuxent Research Refuge--North Tract--Rogue Harbor; Wildlife Loop, near Rogue Harbor Branch, 39.06558 -76.730097, 29m Full Record Details

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Google Map

Display coordinates in Google Map

Google Maps is a web mapping service provided by Google that features a map that users can pan (by dragging the mouse) and zoom (by using the mouse wheel). Collection points are displayed as colored markers that when clicked on, displays the full information for that collection. When multiple species are queried (separated by semi-colons), different colored markers denote each individual species.

Google Earth (KML)