The JIRCAS-Erianthus database is open-access database providing information relating to the morphological and agronomic characteristics of Erianthus germplasm in Thailand. These germplasms were collected and characterized as part of the JIRCAS sugarcane breeding project conducted by JIRCAS and the Khon Kaen Field Crops Research Center in Thailand. This database was developed to enhance the utilization of the wide genetic diversity of Erianthus germplasm for the purposes of sugarcane breeding, research work, and biomass utilization in Thailand and other countries.