"Clarkia pulchella". in Jepson Flora Project (eds.) Jepson eFlora. Jepson Herbarium; University of California, Berkeley. 2020. Retrieved 2020-09-22.
ubc.ca
linnet.geog.ubc.ca
Klinkenberg, Brian, ed. (2020). "Clarkia pulchella". E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. Retrieved 2020-09-22.
usda.gov
plants.usda.gov
USDA, NRCS. (2020). "Clarkia pulchella". The PLANTS Database. National Plant Data Team, Greensboro, NC 27401-4901 USA. Retrieved 2020-09-22.
washington.edu
biology.burke.washington.edu
Giblin, David, ed. (2020). "Clarkia pulchella". WTU Herbarium Image Collection. Burke Museum, University of Washington. Retrieved 2020-09-22.
wildflowersearch.com
Sullivan, Steven. K. (2020). "Clarkia pulchella". Wildflower Search. Retrieved 2020-09-22.