The USDA’s Natural Resources Conservation Service, in conjunction with other government and non-government partners, provides the invaluable PLANTS Database as a service to the public.
According to the PLANTS website:
"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."
"PLANTS is a collaborative effort of the USDA NRCS National Plant Data Team (NPDT), the USDA NRCS Information Technology Center (ITC), The USDA National Information Technology Center (NITC), and many other partners. Much of the PLANTS data and design is developed at NPDT, and the Web application is programmed at ITC and NITC and served through the USDA Web Farm."
Click here to go directly to the PLANTS Database website.