Substrates deposited during the 1980 eruption of Mount St. Helens are being colonized by numerous plant species. Anaphalis margaritacea and Epilobium angustifolium are herbaceous species that are ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...