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Southwest Exotic Mapping Program (SWEMP) Database, 2007

Database of non-native invasive plant infestation sites within Arizona and New Mexico, and adjacent portions of California, Colorado, Nevada and Utah


Start Date
End Date
Publication Date


Thomas, K.A., Guertin, P., 2017, Southwest Exotic Mapping Program (SWEMP) Database, 2007: U.S. Geological Survey data release,


The Southwest Exotic Plant Mapping Program (SWEMP) is a collaborative effort between the United States Geological Survey and federal, tribal, state, county and non-governmental organization (NGO) partners in the southwest. This project is an ongoing effort to compile and distribute regional data on the occurrence of non-native invasive plants in the southwestern United States. The database represents the known sites (represented by a point location, i.e. site) of non-native invasive plant infestations within Arizona and New Mexico, and adjacent portions of California, Colorado, Nevada and Utah. These data, collected from 1911 to 2006, represent the field observations of various state, federal, tribal and county agencies, along with [...]


Point of Contact :
Kathryn A Thomas
Process Contact :
Kathryn A Thomas
Originator :
Kathryn Thomas, Patricia Guertin
Metadata Contact :
Terry Arundel
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
SDC Data Owner :
Southwest Biological Science Center

Attached Files

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Original FGDC Metadata

64.01 KB
USGS_2017_KThomas_SWEMP_Database.csv 17.22 MB


This dataset was created to provide a regional perspective on non-native invasive plant distributions. It can be used to assist land managers, as well as the public, to review the locations and extent of reported infestations. These data can ultimately help guide management strategies and policies for the control of non-native invasive plant species. All plant species in the database are non-native as defined by the USDA PLANTS database 2007; the extent to which they are invasive has not been determined.


The authors of these data request that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.



  • USGS Data Release Products
  • USGS Southwest Biological Science Center (SBSC)



Data source
Input directly

Additional Information


Type Scheme Key
DOI doi:10.5066/F7WQ02JX

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