Symphyotrichum lanceolatum (syn. Aster simplex)
Symphyotrichum lateriflorum (syn. Aster lateriflorus)
Symphyotrichum novae-angliae (syn. Aster novae-angliae)
Symphyotrichum novi-belgii (syn. Aster novi-belgii)
Symphyotrichum pilosum (syn. Aster pilosus)
Symphyotrichum puniceum (syn. Aster puniceus)
Syringa reticulata subsp. amurensis
Syringa villosa
Syringa vulgaris
Tanacetum vulgare
Taxus canadensis
Thalictrum dioicum
