USDA PLANTS images
The PLANTS Database provides standardized information about the vascular plants mosses liverworts hornworts and lichens of the U S and its territories. It includes names, plant symbols, checklists, distributional data, species abstracts, characteristics, images, crop information, automated tools, onward Web links and references. This information primarily promotes land conservation in the United States and its territories, but academic, educational and general use is encouraged. PLANTS reduces government spending by minimizing duplication and making information exchange possible across agencies and disciplines.
Data published on EOL by the PLANTS database include attribute data, images and descriptive text. https://plants.sc.egov.usda.gov/