We propose that an LTER-wide taxonomic database would minimize much of the work of resolving taxonomic differences for future cross-site, network level research projects. The EcoTrends project has built a database to standardize site codes and nomenclature with USDA PLANTS database symbols* and/or the Integrated Taxonomic Information System (ITIS) taxonomic serial numbers across all participating sites (totaling >1800 plant and animal species at 14 sites). We would like your help to improve, expand, and share it.