johnstonii (Munz) J. Hickman
Pronunciation: pol-IG-on-um DUG-las-ee-eye JON-
ston-ee-eye
Common name: Douglas's knotweed
Family: Polygonaceae (Buckwheat)
Habitat: Dry forests, open rocky places to about
8500', Transverse and Peninsular Ranges
Blooming period: July to September
Click for Latin name derivations: (1) Polygonum
(2) douglasii (3) johnstonii