This collection represents some of my personal favorites from the digitization project at the United States National Herbarium, at the National Museum of Natural History. This project's goal is to digitize the 4.5 million specimens held in the collection.
There are hundred of thousands (at the time of publishing) botany specimens available here in the Learning Lab. Find your own favorites using this search.
Technical descriptions of the project can be found in a series of articles from the Smithsonian's Digitization Program Office:
Keywords: plant, ferns, algae, flower, moss, stem, green, yellow, red, natural, color, growing