Table 4 Differences in elevation and morphological traits difference among the three Triplostegia species

Elevation

2284 ± 555 b

2450 ± 548 b

3229 ± 382 a

<  0.001

Plant height (cm)

32.85 ± 11.2 b

44.01 ± 12.56 a

28.61 ± 16.28 c

<  0.001

Taproot length (mm)

75.28 ± 32.1 a

41.74 ± 7.78 b

81.29 ± 28.22 a

<  0.001

Taproot width (mm)

2.1 ± 0.7 b

6.91 ± 1.74 a

2.49 ± 0.78 b

<  0.001

Leaf length (mm)

63.74 ± 24.26 a

49.04 ± 19.89 b

55.84 ± 15.61 a

0.004

Leaf width (mm)

23.84 ± 5.87 a

21.58 ± 5.97 ab

19.69 ± 4.83 ab

<  0.001

Petiole length (mm)

26.55 ± 9.88 a

0 c

14.77 ± 5.2 b

<  0.001

Leaf fission depth (mm)

9.35 ± 3.09 a

5.57 ± 2.02 b

3.81 ± 1.68 c

<  0.001

Corolla length (mm)

2.31 ± 0.52 b

6.61 ± 1.11 a

2.24 ± 0.77 b

<  0.001

Fruit length (mm)

2.84 ± 0.4

2.91 ± 0.69

3 ± 0.71

0.426

Fruit width (mm)

1.15 ± 0.18 b

1.61 ± 0.26 a

1.28 ± 0.41 b

<  0.001