Table 1 Details of sample locations, sample sizes in 28 wild and 22 cultivated populations of Scutellaria baicalensis and 1 wild population of Scutellaria rehderiana.

Neimenggu

Eerguna

EGW

50.42°

119.51°

564.7

20

Neimenggu

Linxi

LXW

44.05°

117.76°

1212

24

Neimenggu

Keshiketeng

KKW

43.28°

117.23°

1399

22

Neimenggu

Guyang

GYW

41.20°

110.60°

1854

24

Neimenggu

Kalaqin

KQLC

42.90°

118.50°

691.2

20

Neimenggu

Kalaqin

KQIC

42.90°

118.76°

691.2

24

Heilongjiang

Huma

HMW

51.93°

126.43°

288.3

24

Heilongjiang

Duerbote

DMW

46.51°

124.59°

146.2

24

Heilongjiang

Luobei

LBC

47.91°

130.72°

184.2

17

Jilin

Baicheng

BCW

45.90°

122.42°

240.8

19

Jilin

Yanji

YJW

42.92°

129.60°

302.1

21

Jilin

Changchun

CCC

43.87°

125.27°

241

19

Liaoning

Jianchang

JCW

40.82°

119.78°

362

22

Liaoning

Jinzhou

JZW

39.13°

121.70°

12

20

Liaoning

Yixian

YXC

41.53°

121.23°

61

22

Hebei

Chengde

CD1W

41.20°

117.94°

58

18

Hebei

Chengde

CD1C

41.20°

117.94°

58

17

Hebei

Chengde

CD2W

40.20°

117.94°

60

23

Hebei

Chengde

CD2C

40.20°

117.73°

60

21

Hebei

Kuancheng

KCW

40.62°

118.47°

304

17

Hebei

Kuancheng

KCC

40.61°

118.49°

304

19

Hebei

Luanping

LPW

40.95°

117.53°

523

18

Hebei

Luanping

LPC

40.93°

117.33°

523

20

Hebei

Chicheng

CCW

40.92°

115.82°

1100

22

Beijing

Yanqing

YQ1W

40.47°

115.97°

900

19

Beijing

Yanqing

YQ2W

40.52°

115.78°

1300.6

22

Beijing

Yanqing

YQC

40.52°

115.78°

600

23

Shandong

Yantai

YTW

37.55°

121.52°

25

24

Shandong

Jinan

JNC

36.64°

117.36°

200

20

Shandong

Juxian

JUXC

35.90°

118.97°

179

19

Jiangsu

Jurong

JRC

31.87°

119.22°

22

24

Henan

Huixian

HXW

35.46°

113.77°

863

22

Henan

Songxian

SXW

34.22°

111.91°

864.5

19

Henan

Songxian

SXC

34.18°

111.97°

539.3

21

Hubei

Fangxian

FXC

33.06°

110.07°

918

21

Shanxi

Wutai

WTW

38.83°

113.36°

1148

24

Shanxi

Fenyang

FYW

37.42°

111.65°

1588

23

Shanxi

Fenyang

FYC

37.35°

111.77°

947

21

Shanxi

Lingchuan

LCW

35.98°

113.49°

1406

21

Shanxi

Lingchuan

LCC

35.95°

111.72°

1363

22

Shanxi

Jiangxian

JXW

35.39°

111.61°

854.5

23

Shanxi

Jiangxian

JXC

35.47°

111.46°

545

20

Shaanxi

Huanglong

HLW

35.59°

109.88°

1218

24

Shaanxi

Huanglong

HLC

35.59°

109.88°

1160

18

Shaanxi

Shanyang

SYW

33.56°

109.89°

949.0

19

Shaanxi

Taibai

TBW

34.06°

107.30°

1682

24

Shaanxi

Taibai

TBC

34.04°

107.30°

1565

22

Gansu

Heshui

HSW

36.12°

108.67°

1121

20

Gansu

Weiyuan

WYW*

35.15°

104.21°

2115

22

Gansu

Weiyuan

WYC

35.15°

104.21°

2090

21

Gansu

Zhangxian

ZXC

34.60°

104.60°

2065

20