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Federal
Alien Plant Threat Assessment
Department of the Interior —
Data on alien (non-native) plant species surveys within the boundaries of disturbed sites within Yosemite National Park. Surveys were supplemented by quadrat-based... -
Federal
Southwest Exotic Mapping Program (SWEMP) Database, 2007
Department of the Interior —
The Southwest Exotic Plant Mapping Program (SWEMP) is a collaborative effort between the United States Geological Survey and federal, tribal, state, county and non-... -
Federal
Alien Plant Survey Protocol Design
Department of the Interior —
Following a survey effort to describe alien plant invasion of anthropogenically disturbed areas, this project set the stage for inventorying areas of natural...