en.wikipedia.org
en.wikipedia.org
gobotany.nativeplanttrust.org
fws.gov
U.S. Fish and Wildlife Service
https://www.fws.gov › species › purpleanther-field-pepperweed-lepidium-heterophyllum
wildflowerweb.co.uk
Wild Flower Web
www.wildflowerweb.co.uk › plant › 1450 › smiths-pepperwort
powo.science.kew.org
Plants of the World Online
https://powo.science.kew.org › taxon › urn:lsid:ipni.org:names:286210-1
earthone.io
linnet.geog.ubc.ca
calflora.org
plants.jstor.org
JSTOR Global Plants
https://plants.jstor.org › compilation › Lepidium.heterophyllum
efloras.org
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