The complete chloroplast genome of brown flatsedge, Cyperus fuscus (Cyperaceae)

Cyperus fuscus known as brown flatsedge plays an important role in sand fixation and water purification. The first complete chloroplast genome sequences of pioneering plant C. fuscus were reported in this study. The complete chloroplast genome was 167,660 bp in length, containing a large single copy region (LSC) of 79,790 bp and a small single copy region (SSC) of 12,192 bp, which were separated by a pair of 37,839 bp inverted repeat regions (IRs). The chloroplast genome contains 135 genes, including 92 protein-coding genes, eight ribosomal RNA genes, and 35 transfer RNA genes. The overall GC content is 36.3%, while the corresponding values of the LSC, SSC, and IR region are 35.1%, 28.3%, and 38.5%, respectively. Further, the maximum-likelihood phylogenetic analysis showed a strong sister relationship with Cyperus difformis in Cyperaceae. Our findings provide a foundation for further study of chloroplast genome evolution and genetics information in C. fuscus.