Table 3.

The collection location of plants material

No.	Species name	Longitude (E)	Latitude (N)	Above sea level (m)	Accession number in herbarium
1	P. dulcis	78°16′14.4″	37°27′51.1″	1809	20180901YI05
2	P. mira	113°42′25.3″	34°42′43.6″	107	20190702YI01
3	P. ferganensis	113°42′25.3″	34°42′43.6″	107	20180910YI03
4	P. davidiana var. potaninii Rehd.	113°42′25.3″	34°42′43.6″	107	20190702YI02
5	P. tangutica	113°42′25.3″	34°42′43.6″	107	20190702YI03
6	P. triloba	109°42′59.4″	38°17′37.2″	1081	20180802YI02
7	P. pedunculate	103°50′49.0″	38°35′15.8″	1354	20180903Yl01
8	P. tenella	103°50′49.0″	38°35′15.8″	1354	20180903Yl02
9	P. mongolica	105°48′4.0″	38°39′35.0″	1979	20180502YI01