Table 1. Information for sample collections.
| Population code |
ID | Sampling locality |
latitude (N) |
Longitude (E) |
Alt. (m) | size |
|---|---|---|---|---|---|---|
| 1 | JY1 | URJangyou (SC) | 31°59′ | 104°52′ | 930 | 11 |
| 2 | JY2 | URJangyou (SC) | 31°59′ | 104°45′ | 635 | 15 |
| 3 | JY3 | URJangyou (SC) | 31°59′ | 104°51′ | 943 | 14 |
| 4 | JY4 | URJangyou (SC) | 31°59′ | 104°51′ | 1247 | 13 |
| 5 | JY5 | URJangyou (SC) | 31°51′ | 104°35′ | 1404 | 12 |
| 6 | SZ1 | UH Sangzhi(HN) | 29°40′ | 110°03′ | 426 | 14 |
| 7 | SZ2 | UHSangzhi (HN) | 29°39′ | 109°49′ | 434 | 14 |
| 8 | SM | UHShimen (HN) | 29°56′ | 110°56′ | 267 | 15 |
| 9 | YC | UHYichang (HB) | 30°42′ | 111°17′ | 245 | 15 |
| 10 | XY | UHXingyi (GZ) | 25°08′ | 104°57′ | 961 | 12 |
| 11 | ZY | UHZiyun (GZ) | 25°41′ | 106°05′ | 1082 | 16 |
| 12 | AS | UHAnshun (GZ) | 26°13′ | 105°23′ | 627 | 14 |
| 13 | SB | UHShibing (GZ) | 27°03′ | 108°19′ | 516 | 16 |
| 14 | CQ | UHNanchuan (CQ) | 30°04′ | 90°33′ | 523 | 9 |
UR:Urophysa rockii; UH: Urophysa henryi; SC = Sichuan province; HN = Hunan province; HB = Hubei province; GZ = Guizhou province; CQ = Chongqing Municipality.