Autumn Willowherb, Tall Annual Willowherb, Tall Annual Willow Herb: Epilobium brachycarpum (Synonyms: Epilobium jucundum, Epilobium paniculatum, Epilobium paniculatum var. hammondii, Epilobium paniculatum var. jucundum, Epilobium paniculatum var. paniculatum) -
Smooth Spikeprimrose, Smooth Spike-primrose, Smooth Willowherb: Epilobium campestre (Synonyms: Boisduvalia glabella, Epilobium pygmaeum)
Ciliate Willowherb, Common Willow Herb, Purple-leaved Willowherb: Epilobium ciliatum ssp. ciliatum (Synonyms: Epilobium adenocaulon var. adenocaulon, Epilobium adenocaulon var. perplexans, Epilobium brevistylum var. brevistylum, Epilobium brevistylum var. ursinum, Epilobium californicum, Epilobium ciliatum var. ciliatum, Epilobium glandulosum var. macounii, Epilobium watsonii var. parishii) -
Bog Willow Herb, Ciliate Willowherb: Epilobium ciliatum ssp. glandulosum (Synonyms: Epilobium adenocaulon var. cinerascens, Epilobium adenocaulon var. occidentale, Epilobium ciliatum var. glandulosum, Epilobium glandulosum, Epilobium glandulosum var. glandulosum, Epilobium glandulosum var. occidentale, Epilobium watsonii var. occidentale) -
Pacific Willowherb, Watson's Willow-herb: Epilobium ciliatum ssp. watsonii (Synonyms: Epilobium franciscanum, Epilobium watsonii, Epilobium watsonii var. watsonii) -
Club-fruited Willowherb, Talus Willowherb: Epilobium clavatum (Synonyms: Epilobium alpinum, Epilobium alpinum var. albiflorum, Epilobium alpinum var. clavatum)
Denseflower Spike Primrose, Dense-flower Willowherb, Dense Spike-primrose: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. pallescens, Boisduvalia densiflora var. salina) -
California Willowherb: Epilobium foliosum (Synonym: Epilobium minutum var. foliosum)
Smooth Willowherb, Smooth Willowweed: Epilobium glaberrimum ssp. glaberrimum (Synonym: Epilobium glaberrimum var. glaberrimum)
Ciliate Willowherb: Epilobium glandulosum (Synonyms: Epilobium adenocaulon var. occidentale, Epilobium brevistylum var. brevistylum, Epilobium ciliatum ssp. glandulosum, Epilobium ciliatum var. glandulosum, Epilobium watsonii var. occidentale)
Glandular Willowherb, Hall's Willowherb: Epilobium hallianum (Synonyms: Epilobium brevistylum, Epilobium brevistylum var. subfalcatum, Epilobium brevistylum var. tenue, Epilobium delicatum, Epilobium glandulosum, Epilobium glandulosum var. tenue)
Codlins and Cream, Fiddlegrass, Fiddle-grass, Fiddle Grass Willowherb: Epilobium hirsutum -
Alpine Brook Willow Herb, Hornemann's Willowherb: Epilobium hornemannii ssp. hornemannii (Synonyms: Epilobium alpinum var. nutans, Epilobium hornemannii ssp. hornemannii) -
White-flowered Willowherb, White-flowered Willow Herb: Epilobium lactiflorum (Synonyms: Epilobium alpinum var. lactiflorum, Epilobium hornemannii var. lactiflorum) -
Low Willowherb, Slender-fruit Willowherb: Epilobium leptocarpum
Yellow Willowherb, Yellow Willow Herb: Epilobium luteum -
Chaparral Willowherb, Small-flowered Willowherb, Small-flowered Willow Herb: Epilobium minutum (Synonym: Epilobium minutum var. minutum) -
Broad-leaved Willow-herb: Epilobium montanum - Possible collection from Wilhelm Suksdorf's garden in Bingen, WA.
Brook Willowherb, Stiff Spikeprimrose, Stiff Spike-primrose, Torrey's Willowherb: Epilobium torreyi (Synonym: Boisduvalia stricta) -
Fireweed: Chamaenerion angustifolium (Synonym: Epilobium angustifolium) -