Biennial Wormwood: Artemisia biennis -

Northern Wormwood: Artemisia campestris var. scouleriana -

Douglas' Wormwood: Artemisia douglasiana -

Dragon Wormwood: Artemisia dracunculus -

Columbia River Sagewort, Prairie Sage, Riverbank Wormwood, Western Mugwort, Western Wormwood, White Sagebrush: Artemisia ludoviciana (Synonyms: Artemisia candicans, Artemisia diversifolia, Artemisia gnaphaloides, Artemisia heriotii, Artemisia incompta, Artemisia ludoviciana ssp. candicans, Artemisia ludoviciana ssp. incompta, Artemisia ludoviciana ssp. ludoviciana, Artemisia ludoviciana ssp. typica, Artemisia ludoviciana var. americana, Artemisia ludoviciana var. britonii, Artemisia ludoviciana var. gnaphalodes, Artemisia ludoviciana var. incompta, Artemisia ludoviciana var. latifolia, Artemisia ludoviciana var. latiloba, Artemisia ludoviciana var. ludoviciana, Artemisia ludoviciana var. pabularis, Artemisia pabularis, Artemisia purshiana, Artemisia vulgaris ssp. ludoviciana, Artemisia vulgaris var. ludoviciana) -

Lemon Sagewort, Michaux Mugwort, Michaux's Mugwort, Michaux's Wormwood: Artemisia michauxiana (Synonym: Artemisia vulgaris ssp. michauxiana) - This is normally a montane species found above timberline on Mt. Adams and in the upper Klickitat River drainage. Plants have however have been observed on the sand and gravel bars along the Klickitat River as far downstream as Wahkiacus, so it is possible some may be found downstream in the vicinity of Lyle, WA. This is probably the result of seeds and/or plant parts being washed downstream from higher elevations and taking hold at lower elevations.

Suksdorf's Wormwood: Artemisia suksdorfii -

Mountain Wormwood: Artemisia tilesii -

Mugwort, Common Wormwood, Lobed Wormwood: Artemisia vulgaris (Synonyms: Artemisia vulgaris var. selengensis, Artemisia vulgaris var. vulgaris) -