[Docks and Sorrels: The Genus Rumex in The Columbia River Gorge of Oregon and Washington]

The photo above shows a good close-up of the strongly toothed tepals of of bitter dock, which along with the size of the plant (up to a meter in height), large, wide leaf blades (See below.), and perennial habit with strong taproot identify this species. All photographs taken along Road #23 at the Mt. Adams Viewpoint, about one-half mile south of the intersection with Road #8810.

The photo above shows the leafy bracteate panicle which makes up the inflorescence of bitter dock.

The upper surface of the leaf blade of bitter dock.

The lower surface of the leaf blade of bitter dock.