Fig. 1

Phylogeny of the genus Aeschynomene and allied genera. The Bayesian phylogenetic reconstruction was obtained using the concatenated ITS (Internal Transcribed Spacer) + matK sequences. Numbers at branches indicate posterior probability above 0.5. The five main lineages are identified with a circled number and the two previously studied Aeschynomene groups are framed in a red box bordered with a dashed line. On the right are listed Aeschynomene subgenus Aeschynomene (in green), other Aeschynomene subgenera or species groups (in blue) and related genera (in orange) with numbers of sampled species/total species indicated into parenthesis