Unidentified Willow-herb D - Possibly club-fruited willowherb (Epilobium clavatum ?)
Alpine Willowherb, Alpine Willow-herb, Pimpernel Willowherb: Epilobium anagallidifolium (Synonym: Epilobium alpinum var. alpinum) -
Autumn Willowherb, Tall Annual Willowherb: Epilobium brachycarpum (Synonyms: Epilobium jucundum, Epilobium paniculatum, Epilobium paniculatum var. hammondii, Epilobium paniculatum var. jucundum, Epilobium paniculatum var. laevicaule, Epilobium paniculatum var. paniculatum, Epilobium paniculatum var. subulatum, Epilobium paniculatum var. tracyi) -
Ciliate Willowherb, Common Willowherb, Purple-leaved Willowherb, Watson's Willowherb: Epilobium ciliatum ssp. ciliatum (Synonyms: Epilobium adenocaulon, Epilobium adenocaulon var. holosericeum, Epilobium adenocaulon var. parishii, Epilobium brevistylum var. ursinum, Epilobium ciliatum ssp. ciliatum, Epilobium ciliatum ssp. watsonii, Epilobium ciliatum var. ciliatum, Epilobium glandulosum var. macounii, Epilobium watsonii, Epilobium watsonii var. parishii, Epilobium watsonii var. watsonii) -
Ciliate Willowherb, Common Willowherb: Epilobium glandulosum (Synonyms: Epilobium adenocaulon var. cinerascens, Epilboium adenocaulon var. occidentale, Epilobium brevistylum var. brevistylum, Epilobium ciliatum ssp. glandulosum, Epilobium ciliatum var. glandulosum, Epilobium glandulosum, Epilobium glandulosum var. glandulosum, Epilobium glandulosum var. occidentale, Epilobium watsonii var. occidentale) -
Club-pod Willowherb, Talus Willowherb: Epilobium clavatum (Synonyms: Epilobium alpinum var. albiflorum, Epilobium alpinum var. clavatum) -
Dense-flower Willowherb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum) -
Glaucous Willowherb, Smooth Willowherb: Epilobium glaberrimum (Synonyms: Epilobium glaberrimum ssp. fastigiatum, Epilobium glaberrimum Barbey ssp. glaberrimum, Epilobium glaberrimum var. fastigiatum, Epilobium glaberrimum var. glaberrimum) -
Glandular Willowherb, Hall's Willowherb: Epilobium hallianum (Synonyms: Epilobium glandulosum var. tenue, Epilobium halleanum, Epilobium pringleanum, Epilobium pringleanum var. tenue) -
Alpine Willowherb, Hornemann's Willowherb: Epilobium hornemannii ssp. hornemannii (Synonyms: Epilobium alpinum, Epilobium alpinum var. nutans, Epilobium hornemannii var. hornemannii) -
Milkflower Willowherb, White Willowherb: Epilobium lactiflorum (Synonyms: Epilobium alpinum var. lactiflorum, Epilobium hornemannii var. lactiflorum) -
Yellow Willowherb, Yellow Willow-herb: Epilobium luteum -
Willowherb: Epilobium luteum x ? ciliatum ssp. glandulosum -
Willowherb: Epilobium luteum x ? hornemannii ssp. hornemannii -
Chaparral Willowherb, Small-flowered Willowher, Small-flowered Willow-herb: Epilobium minutum (Synonym: Epilobium minutum var. minutum) -
Oregon Willowherb: Epilobium oregonense (Epilobium alpinum var. gracillimum) -
Brook Willowherb: Epilobium torreyi (Synonym: Boisduvalia stricta) -
Willowherb: Epilobium X treleasianum -