Include specimens whose determinations have a qualifier
Include cultivated specimens
Include specimens for basionym and other combinations
Specimen coordinates enclosed in square brackets [ ] have been approximated based on political units.

• Europe     
  • Czechoslovakia Czech Socialist Republic: VI 1955, Zdňnek Pilous 396 (MO)
  • Czechoslovakia Czech Socialist Republic: October 1948, Zdňnek Pilous s.n. (MO)
• Mesoamerica     
  • Costa Rica San José: 1160 m, 31 Jan 1965, Robert K. Godfrey 66082a (MO)
  • Costa Rica San José: 26 Feb 1965, Robert K. Godfrey 66699 (MO)
• North America     
  • Canada Quebec: 2400 - 2500 f, 22 Aug 1959, William D. Reese 2415 (MO)
  • Canada Quebec: August 1959, William D. Reese 2453 (MO)
  • Canada Quebec: 22 Jul 1934, BOARDMAN 612 (MO)
  • Canada Quebec: 49°18'00"N 067°54'00"W, 14 Jun 1970, Gardner 111a (MO)
  • United States Alabama: Unknown 11 (MO)
  • United States Alabama, De Kalb: [34°27'00"N 085°47'00"W], 28 Jun 1964, Paul O. Schallert 753 (MO)
  • United States Delaware, New Castle: [39°52'00"N 075°38'00"W], 7 Nov 1964, Clyde F. Reed 68783 (MO)
  • United States Delaware, New Castle: [39°52'00"N 075°38'00"W], 7 Nov 1964, Clyde F. Reed 68793 (MO)
  • United States Delaware, Sussex: [38°42'00"N 075°25'00"W], 25 October 1989, Bruce Allen 8569 (MO)
  • United States Florida, Gadsden: [30°40'50"N 084°37'40"W], 2 Jan 1957, Paul L. Redfearn, Jr. 2877 (MO)
  • United States Florida, Jackson: [30°52'00"N 085°10'00"W], 6 May 1961, Robert K. Godfrey 60774 (MO)
  • United States Florida, Jefferson: [30°25'00"N 084°00'30"W], 19 Aug 1961, Robert K. Godfrey & Richard D. Houk 61409 (MO)
  • United States Florida, Leon: [30°35'40"N 084°17'00"W], 18 Apr 1960, Robert K. Godfrey 59419 (MO)
  • United States Florida, Leon: [30°35'40"N 084°17'00"W], 18 July 1955, Robert K. Godfrey 53626 (MO)
  • United States Florida, Liberty: [30°15'20"N 084°57'20"W], 28 Dec 1990, William D. Reese 18014 (MO)
  • United States Florida, Liberty: [30°15'20"N 084°57'20"W], 3 May 1990, William D. Reese 17967 (MO)
  • United States Florida, Liberty: [30°15'20"N 084°57'20"W], 15 Sept 1955, Ronald A. Pursell 400MF50 (MO)
  • United States Florida, Liberty: 30°17'00"N 084°52'00"W, 28 December 1990, Bruce Allen 9899 (MO)
  • United States Florida, Liberty: 30°17'00"N 084°52'00"W, 28 December 1990, Bruce Allen 9895 (MO)
  • United States Florida, Wakulla: [30°10'00"N 084°20'00"W], 29 Nov 1989, Bruce Allen 7527 (MO)
  • United States Florida, Wakulla: [30°10'00"N 084°20'00"W], 4 Dec 1988, Bruce Allen 7688 (MO)
  • United States Florida, Wakulla: [30°10'00"N 084°20'00"W], 3 Nov 1964, Robert K. Godfrey 64883 (MO)
  • United States Florida, Wakulla: [30°10'00"N 084°20'00"W], 4 Dec 1988, Bruce Allen 7687 (MO)
  • United States Florida, Walton: [30°42'20"N 086°10'00"W], 3 March 1956, Ronald A. Pursell 500MF89 (MO)
  • United States Maine, Sagadahoc: 43°44'50"N 069°48'30"W, 17 August 2004, Bruce Allen 27066 (MO)
  • United States Maryland, Garrett: 39°29'06"N 079°26'32"W, 28 Sept 1963, E. G. Worthley 3478 (MO)
  • United States Maryland, Prince George's: [38°50'00"N 076°51'00"W], 15 May 1913, BOONE s.n. (MO)
  • United States Maryland, Worcester: [38°12'00"N 075°23'00"W], 8 Apr 2008, Wesley M. Knapp, Jason Harrison & William A. McAvoy LV492 (MO)
  • United States Michigan, Cheboygan: [45°27'00"N 084°30'20"W], 24 Aug 1970, Howard A. Crum s.n. (MO)
  • United States New Jersey, Cumberland: [39°21'00"N 075°05'00"W], 18 Sep 1982, R.E. Andrus 5850 (MO)
  • United States New Jersey, Ocean: [39°54'00"N 074°13'00"W], 19 July 1975, R.E. Andrus 3573 (MO)
  • United States New York, Chenango: [42°28'00"N 073°35'00"W], 16 June 1988, R.E. Andrus 7330 (MO)
  • United States North Carolina, Bladen: 34°37'44"N 078°36'18"W, 6 May 1975, Lewis E. Anderson 21981 (MO)
  • United States North Carolina, Bladen: 34°35'18"N 078°33'58"W, 21 April 1999, Steven R. Hill 31369 (MO)
  • United States North Carolina, Brunswick: 33°55'16"N 078°01'12"W, 23 May 1973, Lewis E. Anderson 21484 (MO)
  • United States North Carolina, Brunswick: 34°01'03"N 078°16'04"W, 10 Oct 1974, Lewis E. Anderson 21802 (MO)
  • United States North Carolina, Brunswick: 33°55'16"N 078°01'12"W, 23 May 1973, Lewis E. Anderson 21491 (MO)
  • United States North Carolina, Brunswick: [34°04'00"N 078°16'00"W], 15 May 1975, Lewis E. Anderson 22038 (MO)
  • United States North Carolina, Brunswick: [34°04'00"N 078°16'00"W], 13 Jun 1981, R.E. Andrus 5519 (MO)
  • United States North Carolina, Brunswick: Shoestring Savannah, 34°06'40"N 078°19'10"W, 1 November, 1998, Michelle J. Price 1049 (MO)
  • United States North Carolina, Brunswick: Shoestring Savannahh, 34°06'40"N 078°19'10"W, 1 November, 1998, Michelle J. Price 1046 (MO)
  • United States North Carolina, Brunswick: Shoestring Savannah, 34°06'40"N 078°19'10"W, 1 November, 1998, Michelle J. Price 1037 (MO)
  • United States North Carolina, Brunswick: Shoestring Savannah, 34°06'40"N 078°19'10"W, 1 November, 1998, Michelle J. Price 1038 (MO)
  • United States North Carolina, Jackson: 3800 f, [35°16'00"N 083°08'00"W], 17 September 1997, Paul L. Redfearn, Jr. & Alice Redfearn 39065 (MO)
  • United States North Carolina, Macon: 35°03'07"N 083°11'46"W, 27 June 1970, Lewis E. Anderson 20868 (MO)
  • United States North Carolina, Pender: 34°33'07"N 077°55'34"W, 10 Oct 1974, Lewis E. Anderson 21785 (MO)
  • United States North Carolina, Richmond: [35°00'00"N 079°45'00"W], 5 May 1976, Lewis E. Anderson, D. Lane & Ann H. Stoneburner 22180 (MO)
  • United States North Carolina, Scotland: [34°50'00"N 079°30'00"W], 16 June 1977, Lewis E. Anderson 22362 (MO)
  • United States North Carolina, Wayne: [35°22'00"N 078°00'10"W], 27 July 1980, Lewis E. Anderson 23697 (MO)
  • United States Pennsylvania, Monroe: [41°15'10"N 075°09'00"W], 15/VII, 1985, R.E. Andrus 6645 (MO)
  • United States South Carolina, Chesterfield: [34°39'00"N 080°10'00"W], 12 November 1984, Howard A. Crum s.n. (MO)
  • United States Vermont, Lamoille: [44°35'00"N 072°38'00"W], 27 Aug 1959, William D. Reese 2490 (MO)
• South America     
  • Bolivia Santa Cruz, Manuel Maria Caballero: Tinque Laguna, 2625 m, 17°51'00"S 064°32'00"W, 25 Nov 1999, Michael H. Nee 50637 (MO, NY)
  • Colombia Nariño: ca. 1800 m, 01°06'00"N 077°54'00"W, 17.vi.1991, S. P. Churchill 18330 (MO)
  • Colombia Nariño, Pasto: Páramo Los Frailes, 3300-3350 m, 01°15'00"N 077°13'00"W, 31 Jul 1997, Bernardo R. Ramírez Padilla 10895 (MO, PSO)
  • Colombia Nariño, Pasto: Páramo El Frailejonal, 3400 m, 01°10'00"N 077°13'00"W, 12-14 Feb 1997, Bernardo R. Ramírez Padilla 10473 (MO, PSO)
  • Colombia Nariño, Pasto: Alto Zapallurco, 3250 m, 01°18'00"N 077°10'00"W, 24 Jul 1997, Bernardo R. Ramírez Padilla 10802 (MO, PSO)
  • Colombia Nariño, Sapuyes: Páramo de Paja Blanca, 3500-3600 m, 01°58'00"N 077°36'00"W, 3 Dic 1995, Bernardo R. Ramírez Padilla 9009 (MO, PSO)
  • Colombia Valle del Cauca, Darien: Cerro Calima, 3500 m, 04°03'55"N 076°30'50"W, 25 Jul 1998, S. P. Churchill 19515 (MO)
  • Ecuador Loja: Yangana, 2460 m, 04°30'00"S 079°11'00"W, 16 Jan 1981, James L. Luteyn 8048 (MO)
  • Venezuela Bolívar: 850 m, 04°30'00"N 061°30'00"W, 30 Oct. 1985, Ronald L. Liesner 19159 (MO)