"Appendix 1. All plant samples (Doellingeria, Eucephalus and outgroups) used for molecular analyses, with GenBank accession numbers and (for specimens sampled for the study) voucher and locality information. ",,,,,,,
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I. Samples collected by the authors or obtained from herbarium specimens for this study.,,,,,,,
TAXON,ITS,ETS, trnC-ycf6 spacer,Sample code,Collector & voucher location,Year,Locality
Ingroup species,,,,,,,
Doellingeria infirma (Michx.) Greene,MN295531,MN295502,MN295560,S10716,J. C. Semple 10716 (WAT),1999,"USA. West Virginia. Pocahontas Co., NW of Mill Point, Monongahela National Forest"
Doellingeria sericocarpoides Small,MN295532,MN295503,MN295561,S10531,J. C. Semple 10531 (WAT),1995,"USA. South Carolina. Chesterfield Co., US-1 S of entrance to Cheraw Fish Hatchery"
Doellingeria umbellata (Mill.) Nees,MN295533,MN295504,MN295562,S11044,J. C. Semple 11044 (WAT),2001,"USA. Massachusetts. Berkshire Co., NE of Lenox Dale, October Mt., Schermerhorn Rd."
Doellingeria umbellata (Mill.) Nees,MN295534,MN295505,MN295563,SS11185,Semple & Semple 11185 (WAT),2003,"USA. Tennessee. Morgan Co., TN-298 SW of TN-62, cliff N of Clear Creek"
Doellingeria umbellata (Mill.) Nees,MN295535,MN295506,MN295564,G21464,C.E. Garton 21464 (UVIC),1982,"Canada. Ontario. Thunder Bay District, Rt. Bank of Namewaminikan River, at High Falls, Sandra Township, 49.68 N, 88.00 W"
Eucephalus breweri (A.Gray) Nesom,MN295536,MN295507,MN295565,SH8736,J. C. Semple & S. Heard  8736 (UC),1986,"USA. California. Tuolumne Co., Dardanelle at Brightman Flat Campground, elev. 1740 m"
Eucephalus breweri (A.Gray) Nesom,MN295537,MN295508,MN295566,E7865,B. Ertter 7865 (UC),1988,"USA. California. Lassen Co., 16 km S of Susanville, 2.4 km E of Diamond Peak, T28N, R12E S6 SE, elev. 2255 m"
Eucephalus elegans Nutt.,MN295538,MN295509,MN295567,B10488,W.H. Baker 10488 (WTU),1953,"USA. Idaho. Butte Co., Craters of the Moon National Monument, Canyon 6.5 km SW of headquarters, edge of lava flow"
Eucephalus elegans Nutt.,MN295539,MN295510,MN295568,H19500,R. L. Hartman  19500 (BYU),1984,"USA. Wyoming. Park Co., Absaroka Mtns, Boulder Basin Trail, Castle Creek Drainage, elev. 2865 m"
Eucephalus elegans Nutt.,MN295540,MN295511,MN295569,GD1844,J. L. Gentry Jr. & G. Davidse 1844 (BYU),1967,"USA. Nevada. White Pine Co., Ruby Mtns, S of Harrison Pass, T26N R56E S24, elev. 2590 m"
Eucephalus elegans Nutt.,MN295541,MN295512,MN295570,A1334,G. A. Allen 1334 (UVIC),2005,"USA. Utah. Utah Co., NE of Nephi on Mt. Nebo loop road, aspen forest along view trail to Devil's Kitchen"
Eucephalus engelmannii (D.C.Eaton) Greene,MN295542,MN295513,MN295571,H3731,R. R. Halse 3731 (OSC),1988,"USA. Wyoming. Teton Co., Targee Nat. Forest, Grand Targhee Resort, West base of Freds Mtn, T44N, R118W S12, elev. 2376 m"
Eucephalus glabratus (Greene) Greene,MN295543,MN295514,MN295572,K16314,T. N. Kaye 1631 (OSC) pending,2007,"USA. Oregon. Jackson Co., Tolman Creek Road, Ashland watershed."
Eucephalus glaucescens (A.Gray) Greene,MN295544,MN295515,MN295573,K81115,L. M. Kemp 81115 (WTU),1981,"USA. Washington. Skamania Co., Underwood Mtn., T3N, R10E"
Eucephalus glaucescens (A.Gray) Greene,MN295545,MN295516,MN295574,SX10273,J. C. Semple & C. Xiang 10273 (WAT),1992,"USA. Washington. Klickitat Co., NW of Husum, W of Mt. Baldy, ca. 3 km W of WA-141 on gravel side road to top of ridge"
Eucephalus gormanii Piper,MN295546,MN295517,MN295575,W1990,M. Woodbridge s.n. (OSC),1990,"USA. Oregon. Clackamas Co., near Lost Creek Meadows, T6S, R5E, S6, elev. 1160 m"
Eucephalus gormanii Piper,MN295547,MN295518,MN295576,SX10265,J. C. Semple & C. Xiang 10265 (WAT),1992,"USA. Oregon. Marion Co., W of Detroit, near top of Sardine Mt."
Eucephalus ledophyllus (A.Gray) Greene,MN295548,MN295519,MN295577,S809,R. Schuller 809 (WTU),1979,"USA. Washington. Skamania Co., Gifford Pinchot National Forest, Steamboat Mt. Research Natural Area"
Eucephalus ledophyllus (A.Gray) Greene,MN295549,MN295520,MN295578,T9093,D. W. Taylor 9093 (UC),1987,"USA. California. Shasta Co., summit of Grizzly Peak, dividing McCloud River and Pit River Drainages, T36N R1W S21, elev. 1890 m"
Eucephalus ledophyllus (A.Gray) Greene,MN295550,MN295521,MN295579,SX10272,J. C. Semple & C. Xiang 10272 (WAT),1992,"USA. Oregon. Hood River Co., Mt. Hood, Cooper Spur Trail, below Elliot Glacier, T2S, R9E, S15"
Eucephalus paucicapitatus (Robins.) Greene,MN295551,MN295522,MN295580,W1970,P.D. Warrington s.n. (UVIC),1970,"Canada. British Columbia. Vancouver Island, Mt. Arrowsmith"
Eucephalus paucicapitatus (Robins.) Greene,MN295552,MN295523,MN295581,SX10288,J. C. Semple & C. Xiang 10288 (WAT),1992,"USA. Washington. Clallam Co., S of Port Angeles, alpine ridge, NW of Eagle Point, elev. ca 1675 m"
Eucephalus tomentellus Greene,MN295553,MN295524,MN295582,R292,W. Rolle 292 (OSC),1989,"USA. Oregon. Jackson Co., 4mi SSE from McDonald Creek, T40S R1E, S19, elev. 2180 m"
Eucephalus tomentellus Greene,MN295554,MN295525,MN295583,SH8495,Semple & Heard 8495 (WAT),1986,"USA. California. Siskiyou Co., SW of Etna, Etna Summit on Forest Hwy 93"
Eucephalus vialis Bradshaw,MN295555,MN295526,MN295584,K16291,T. N. Kaye 1629 (OSC),2007,"USA. Oregon. Lane Co., Gowdyville Road W of Cottage Grove"
Eucephalus vialis Bradshaw,MN295556,MN295527,MN295585,K16431,T. N. Kaye 1643 (OSC),2007,"USA. Oregon. Josephine Co., Rd 4810, S of Page Mt. snowpark"
Outgroup species,,,,,,,
Baccharis pilularis DC.,MN295557,MN295528,MN295586,H4578,R. R. Halse 4578 (OSC),1992,"USA. Oregon. Douglas Co., off US Hwy 101 about 12 km S of Florence, East Carter Lake boat ramp area. Siuslaw Nat. For., T 20S R 12W S8."
Baccharis salicifolia (Ruiz & Pav.) Pers.,MN295558,MN295529,MN295587,AA1983,G. Allen & J. Antos s.n. (UVIC),1983,"USA. California. Kern Co., Kern Canyon along Hwy 178, NE of Hillcrest"
Oclemena nemoralis (Aiton) Greene,MN295559,MN295530,MN295588,S10380,Semple 10380 (WAT),1993,"USA. Maine. Sagadohoc Co., W of Popham Beach"
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II. Sequences retrieved from GenBank. ,,,,,,,
TAXON , ITS, ETS, trnC-ycf6 spacer,,,,
Outgroup species,,,,,,,
Archibaccharis asperifolia S.F.Blake, KX063950.1, KX063950.1, KX063859.1,,,,
Arida carnosa (A.Gray) D.R.Morgan & R.L.Hartm., EU200186.1, EU196510.1, GU480694.1,,,,
Diplostephium cinereum Cuatrec., KX063999.1, KX063999.1, KX063889.1,,,,
Diplostephium ericoides (Lam.) Cabrera, KX064026.1, KX064026.1, KX063892.1,,,,
Eurybia conspicua (Lindl.) G.L.Nesom, EU200193.1, EU196492.1, GU480665.1,,,,
Eurybia macrophylla (L.) Cass., EU200202.1, EU196496.1, GU480669.1,,,,
Eurybia radula (Aiton) G.L.Nesom, EU200207.1, EU196488.1, GU480659.1,,,,
Herrickia glauca (Nutt.) Brouillet var. pulchra (S.F.Blake) Brouillet , EU200216.1, EU196504.1, GU480679.1,,,,
Herrickia kingii (D.C.Eaton) Brouillet var. barnebyana (S.L.Welsh & Goodrich) Brouillet , EU200215.1, EU196503.1, GU480675.1,,,,
Hinterhubera ericoides Wedd., KX063974.1, KX063974.1, KX063910.1,,,,
Laennecia sophiifolia (Kunth) G.L.Nesom, KX064011.1, KX064011.1, KX063899.1,,,,
Lagenophora cuchumatanica Beaman & De Jong, KX064034.1, KX064034.1, KX063879.1,,,,
Machaeranthera tanacetifolia (Kunth) Nees, EU200218.1, EU196509.1, GU480688.1,,,,
Oreostemma alpigenum (Torr. & A.Gray) var. alpigenum , EU200219.1, EU196506.1, GU480681.1,,,,
Oreostemma peirsonii (Sharsm.) G.L.Nesom, EU200221.1, EU196508.1, GU480684.1,,,,