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Abstract

Corydalis is an extremely diverse genus of around 530 angiosperm species, mainly distributed in the northern temperate regions, with a diversity center in the Himalaya–Hengduan Mountains region. Chen et al. (pages 2138-2156) constructed a globally comprehensive and robust phylogenetic framework at the section level of Corydalis based on nuclear and plastid genomic data extracted from genome skimming. This work provides an excellent exemplar case study for tackling the challenges of taxonomic research on hyper-diverse taxa in the era of genomics. The cover shows diverse flowers of Corydalis.