Appendix 1.
Voucher information for Carex individuals included in this study.
| Geographic coordinates | |||||||
| Species | Voucher (Herbarium)a | Latitude | Longitude | Elevation (m) | State (Country) | County | N |
| Carex eburnea Boott | Gillespie s.n. (BOON)b | 36.30 | −81.93 | 598 | Tennessee (USA) | Johnson | 1 |
| Carex eburnea | Gillespie 16-156 (MUHW)c | 36.30 | −81.93 | 598 | Tennessee (USA) | Johnson | 24 |
| Carex eburnea | Mason 16-001 (MUHW)c | 64.02 | −145.72 | 362 | Alaska (USA) | SE Fairbanks | 22 |
| Carex eburnea | Gillespie 16-157 (MUHW)c | 37.63 | −79.54 | 343 | Virginia (USA) | Rockbridge | 22 |
| Carex eburnea | Gillespie 03-230 (BOON)d | 35.96 | −92.18 | 250 | Arkansas (USA) | Stone | 1 |
| Carex eburnea | Reznicek s.n. (MICH)d | 21.28 | −99.18 | 1110 | Querétaro (Mexico) | NA | 1 |
| Carex eburnea | Richardson s.n. (OAC)d | 45.18 | −81.61 | 180 | Ontario (Canada) | NA | 1 |
| Carex mckittrickensis P. W. Ball | Gillespie 04-001 (BOON)d | 31.98 | −104.79 | 1900 | Texas (USA) | Culberson | 1 |
| Carex alba Scop. | Hendrichs 3705 (TUB)d | 49.07 | 10.01 | 600 | Bayern (Germany) | NA | 1 |
| Carex ussuriensis Kom. | Elias 10982 (ALA)d | 48.31 | 135.09 | 153 | Khaborovsk (Russia) | NA | 1 |
Note: N = number of individuals; NA = not applicable.
Vouchers are deposited at the following herbaria: I. W. Carpenter Jr. Herbarium, Appalachian State University (BOON), Boone, North Carolina, USA; Marshall University Herbarium (MUHW), Huntington, West Virginia, USA; University of Michigan Herbarium (MICH), Ann Arbor, Michigan, USA; Guelph University Herbarium (OAC), Guelph, Ontario, Canada; Universität Tübingen (TUB), Tübingen, Germany; and University of Alaska Museum of the North (ALA), Fairbanks, Alaska, USA.
Voucher for Illumina sequencing.
Voucher for marker development (separate collection effort).
Voucher for cross-amplification (five individuals from Culberson County, Texas, USA).