Synonyms: Knafia helix; Knafia purpurea (homotypic); Nectolis hippophifolia; Nectolis membranacea; Salix arborescens; Salix baumgarteniana; Salix bifurcata; Salix caesifolia; Salix calliantha; Salix carniolica; Salix concolor (heterotypic); Salix dahurica (heterotypic); Salix elaeagnifolia (heterotypic); Salix fissa (heterotypic); Salix furcata (heterotypic); Salix fuscata (heterotypic); Salix heliciflora (homotypic); Salix helix; Salix helix var. purpurea; Salix hippophifolia; Salix hoffmanniana (heterotypic); Salix membranacea; Salix mirabilis; Salix mollissima; Salix monadelpha (homotypic); Salix monandra (heterotypic); Salix monandra var. helix; Salix monandra var. monadelpha; Salix monandra var. purpurea; Salix monandra var. sericea; Salix monandra var. subverticillata; Salix multiformis; Salix neilreichii; Salix oppositifolia; Salix pallida (heterotypic); Salix patula (heterotypic); Salix pratensis (heterotypic); Salix purpurea embergeri; Salix purpurea f. communis; Salix purpurea f. gracilis; Salix purpurea f. sericea; Salix purpurea gracilis; Salix purpurea helix; Salix purpurea nana; Salix purpurea var. androgyna; Salix purpurea var. angustifolia; Salix purpurea var. berdaui; Salix purpurea var. dniestrensis; Salix purpurea var. embergeri; Salix purpurea var. gracilis; Salix purpurea var. helix; Salix purpurea var. hispanica; Salix purpurea var. leioandra; Salix purpurea var. macrocarpa; Salix purpurea var. malacensis; Salix purpurea var. monadelpha; Salix purpurea var. pendula; Salix purpurea var. purpurea; Salix purpurea var. ramulosa; Salix purpurea var. sandomiriensis; Salix purpurea var. sericea (heterotypic); Salix purpurea var. smithiana; Salix purpurea var. vistulensis; Salix purpurea var. vulgaris; Salix purpurea var. wollgariana; Salix ritschelii; Salix rosea; Salix rossmaessleri (homotypic); Salix rubra var. helix; Salix sansoniana; Salix semihelix; Salix sphaerocephala; Salix tenuis (heterotypic); Salix undulata (heterotypic); Salix uralensis (homotypic); Salix viminalis (heterotypic); Salix virgata (heterotypic); Vetrix helix; Vetrix purpurea (homotypic)