Pilea pumila
From Nearctica
Identification: Flowers minute, green, arranged in short, hanging spikes arising from the leaf axils. Stem translucent. Stem and leaves lacking stinging hairs. Leaves in opposite pairs, ovate, with a coarsely toothed outer margin. Plant 4 to 20 inches in height.
Distribution: Throughout eastern North America.
Habitat: Clearweed is found in wet, highly shaded habitats.
Flowering period: July to October.
Similar Species: Clearweed is most likely to be confused with False Nettle.