Keywords: Pilea pumila BB-1913.png en Pilea pumila L A Gray - Canadian clearweed 1913 http //plants usda gov/java/largeImage imageID pipu2_001_avd tif USDA-NRCS PLANTS database / An illustrated flora of the northern United States Canada and the British Possessions 3 vols Charles Scribner's Sons New York Vol 1 637 Britton N L and A Brown 1913 An illustrated flora of the northern United States Canada and the British Possessions 3 vols Charles Scribner's Sons New York Vol 1 637 Courtesy of Kentucky Native Plant Society Scanned by Omnitek Inc PD-USGov Uploaded with UploadWizard Pilea pumila - botanical illustrations Britton Brown Illustrated flora of the northern states and Canada |