iNaturalist Database | 1,047,098 |
USDA Forest Service Natural Resource Information Systems (NRIS) | 743,665 |
Calflora Database, Calflora | 426,010 |
USDA PLANTS Database, USDA NRCS | 356,308 |
Biota of North America Program | 343,656 |
Forest Inventory and Analysis Database, U.S. Forest Service - Southern Research Station | 240,795 |
US Forest Service Forest Health Protection | 232,507 |
Mark Andersen, University of Wyoming | 228,804 |
Rutgers Cooperative Extension IPM | 185,953 |
International Biological Information System Database | 153,633 |
Other 74,644 users | 4,866,132 |
