Parietaria pensylvanica
A small, inconspicuous plant of moist ground in canyons. Unlike Urtica, this plant is completely innocuous.
Plant habit near Dripping Springs on the west side of the Organ Mountains, Doña Ana County, New Mexico, 5 Feb 2006.
A flowering stem in the arroyo below La Cueva on the west side of the Organ Mountains, Dña Ana County, New Mexico, 2 May 2007.
Flowers in the arroyo below La Cueva, 2 May 2007.
Wider view of a flowering plant in the arroyo below La Cueva, 2 May 2007.