OBJECTIVES:   Water hyacinth (Eichhornia crassipes) is one of the most notorious invasive   aquatic plants in the world and is known to cause significant ecological and   socioeconomic impacts. Here, we reported a high-quality chromosome-level   genome for water hyacinth, which will be a valuable reference for future   investigations of its invasion.DATA DESCRIPTION: A chromosome-level genome   for water hyacinth was constructed by combing MGI short-reads sequencing,   PacBio HiFi (High-fidelity) sequencing, and Hi-C sequencing, which resulted   in ca. 1132.2 Mb in size the contig and scaffold N50 length of 18.76 Mb and   69.84 Mb, respectively. A total of 1024.36 Mb (90.47%) of the assembled   sequences were anchored to 16 pseudochromosomes, dividing into subgenome A   (468.72 Mb in size) and subgenome B (555.64 Mb in size). A total of 57,683   protein-coding genes were predicted, including 25,445 protein-coding genes   for subgenome A and 27,992 protein-coding genes for subgenome B. Furthermore,   the LAI and QV scores of the water hyacinth genome were 12.32 and 48.91,   respectively.