Fig. 1

Morphological variation. Distribution for eight quantitative and four qualitative morphological traits related to vegetative (a–c), leaf (d–f), flower (g–i), and fruit (j–l) descriptors for each geographical group. p Values (in brackets) of the differences between species are shown. Morphological traits were measured as follows: a Plant height until last inflorescence, measured in cm. b Stem width between second and third inflorescence, measured in mm. c The way that leaves are held naturally (1: semi-erect, 3: semi-horizontal, 5: horizontal, 7: horizontal-drooping, 9: drooping, 10: accessions that exhibited variability for their measures). d Number of small leaflets. e Leaf length, measured in cm. f Leave dissection (0: low, 1: intermediate, 2: high, 10: accessions that exhibited variability for their measures). g Number of flowers in the second inflorescence. h Distance from the stem to the last flower of the inflorescence. i Position of the style in relation to stamens (1: inserted, 2: same level as stamen, 3: slightly exerted, 4: highly exerted, 10: accessions that exhibited variability for their measures). j Fruit weight, measured in grams. k Number of locules in the transversal section of the fruit. l Presence and color of green shoulder (0: uniform, 3: light green, 5: medium green, 7: dark green, 10: accessions that exhibited variability for their measures)