Polygonum douglasii ssp. johnstonii – Johnston’s Knotweed
Scientific Name:Polygonum douglasii ssp. johnstonii
Collection Date:July 20, 2010
Collection County:Mono
Collector:Ann Howald
Collection Number:2615
Annual herb, flowers green; occasional in open sites within dry meadow, east end of property near north fence; with Smilacina stellate, Astragalus Canadensis var. brevidens.
Discover more about this species at The Jepson Herbarium(link is external).
