“…Plastid genome sequences may offer an approach to reveal phylogenetic relationships within Roscoea. Several studies have used plastid genomes to resolve recalcitrant plant lineages ( Wei et al., 2021 ; Escobari et al., 2021 ; Kleinwee et al., 2022 ; Xu et al., 2022 ). Plastid genomes are relatively easy to assemble and annotate now, and they can provide valuable resources to assess inter-specific relationships, especially within unresolved low taxonomic levels ( Li et al., 2021 ).…”