Supplement 1. The 56 mountains or ranges (codes) used in the study, with their location, number of species, and the source of the species data.

Map#SiteLatitudeLongitudeSSource

13Sisters44.103121.76925Van Vechten, 1960

2Absorka44.6109.526353RMH*

3Bighorn 44.438107.27288RMH

4MtBaldyMT 46.77109.35614Bamberg & Major, 1968

5Beartooth 45.023109.40219Johnson & Billings, 1962

6BigWhite 49.738118.93279Eady, 1971

7Carson 36.559105.414166RMH

8Cascades1 47.505120.82489del Moral, 1979

9Cascades2 48.541121.11329Douglas & Ballard, 1971

11DeepCreek39.828113.9229McMillan, 1948

12EagleCap 45.162117.30118Johnson, 2004

13FlintCreek 46.088113.0927Bamberg & Major, 1968

14GunnisonN 38.808106.813276RMH

15GunnisonS37.952107.408275RMH

16GlacierNP 48.716113.629233Damm, 2001

17Garibaldi 49.897122.953Archer, 1963

18GrosVentre43.405110.389215RMH

19Henry 38.122110.81527Neese, 1981

20LemhiN 44.233113.17265Moseley, 1983, 1985

21Pioneer 44.007113.657Moseley, 1985

22LemhiS 44.063113.70837Urbanczyk, 1993

23WhiteKnob 44.124114.61842Caicco, 1983

24IndianPeaks 40.060105.62217Komarkova, 1979

25MedicineBow 41.354106.311254Billings, 1988; Lukas et al., 2012

26Mosquito39.113106.493230RMH

27MesaSeco 38.035107.24394Johnson, 1970

28MtJefferson 44.742121.79545Ingersoll, 1991

29N.Alberta 50.221114.52420Mortimer, 1978; Hamilton, 1981

30Olympics1 47.924123.3821Bell & Bliss, 1973

31Olympics2 47.955123.25983Belsky and del Moral, 1982

32ParkRange40.69106.672127RMH

33Rainier 46.915121.824148Edwards, 1980

34TrailRidge 40.413105.73393Willard, 1979

35RubyNV 40.613115.38432Loope, 1970

36SanJuan37.574107.019226RMH

37Shasta 41.41122.19541Cooke, 1940

38Sierra1 37.23118.62468Chabot & Billings, 1972

39Sierra2 38.699119.99454Taylor, 1976

40Sierra3 37.586118.87450Pemble, 1970

41SanFrancisco35.346111.67847Little, 1941

42S.Alberta1 51.318116.128104Beder, 1967

43S.Alberta2 50.595114.524139Trottier, 1972

44S.Alberta3 50.22114.5249Bryant, 1968

45SWColorado 37.684107.987170RMH

46Tetons 43.728110.84864RMH

47Trinity 41123.04821Ferlatte, 1974

48Tushar 38.221112.222168Taye, 1995

49Uinta1 40.744110.68729Ostler et al., 1982

50Uinta2 40.779110.48323St. Clair, 1984

51VancouverIsl49.662167125.74743Ogilvie and Ceska, 1984

52Wasatch 40.53303111.681134Arnow et al., 1977

53Wassuk 38.57026118.79132Bell and Johnson, 1980

54White 37.63527118.25320Rundel et al., 2008

55WindRiver43.124543109.618245RMH

56Yellowstone 43.799109.879201RMH

Total number of species in dataset:1162

*RMH: online source of the Rocky Mountain Herbarium (

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