Symphyotrichum carolinianum Symphyotrichum cordifolium 'Ideal'
Symphyotrichum dumosum 'Bonny Blue' Symphyotrichum dumosum 'Kiestrbl (Sapphire)'
Symphyotrichum dumosum 'Lady in Blue' Symphyotrichum dumosum 'Persian Rose'
Symphyotrichum dumosum 'Peter Harrison' Symphyotrichum dumosum 'Rose Serenade'
Symphyotrichum dumosum 'Snow Cushion' Symphyotrichum dumosum 'Snow Flurry'
Symphyotrichum dumosum 'Winston Churchill' Symphyotrichum dumosum 'Wood's Light Blue'
Symphyotrichum dumosum 'Wood's Pink' Symphyotrichum dumosum 'Wood's Purple'
Symphyotrichum georgianum Symphyotrichum laeve 'Bluebird'
Symphyotrichum lateriflorum 'Lady in Black' Symphyotrichum lateriflorum 'Prince'
Symphyotrichum novae-angliae Symphyotrichum novae-angliae 'Alert'
Symphyotrichum novae-angliae 'Alma Potschke' Symphyotrichum novae-angliae 'Bressingham Pink'
Symphyotrichum novae-angliae 'Hella Lacy' Symphyotrichum novae-angliae 'Purple Dome'
Symphyotrichum novae-angliae 'Red Star' Symphyotrichum novae-angliae 'Treasurer'
Symphyotrichum novi-belgii Symphyotrichum novi-belgii 'Frolic'
Symphyotrichum novi-belgii 'Henry III' Symphyotrichum novi-belgii 'Marie III'
Symphyotrichum novi-belgii 'Patricia Ballard' Symphyotrichum novi-belgii 'Peter III'
Symphyotrichum novi-belgii 'Prof. Anton Kippenberg' Symphyotrichum novi-belgii 'Shout'
Symphyotrichum novi-belgii 'Snowball' Symphyotrichum novi-belgii 'Twist'
Symphyotrichum pilosum Symphytum caucasicum
Symphytum grandiflorum Symphytum grandiflorum 'Goldsmith'
Symphytum grandiflorum 'Hidcote Blue' Symphytum officinale
Symphytum x uplandicum 'Axminster Gold' Symphytum x uplandicum 'Variegatum'
Symplocarpus foetidus Syneilesis aconitifolia
Syngonium podophyllum 'White Butterfly' Syringa x 'Ami Schott'
Syringa x 'Arch McKean' Syringa x 'Atheline Wilbur'
Syringa x 'Bailbelle(Tinkerbelle™)' Syringa x 'Betsy Ross'
Syringa x 'Buffon' Syringa x 'Clarks Giant'
Syringa x 'Ester Staley' Syringa x 'Firmament'
Syringa x 'Florea' Syringa x 'George Eastman'
Syringa x 'Josee' Syringa x 'Nike'
Syringa x 'Penda (Bloomerang® Purple)' Syringa x 'Prairie Petite'
Syringa x 'Silver King' Syringa x 'SMSJBP7 (Bloomerang® Dark Purple)'
Syringa x 'SMSXPM (Scent and Sensibility® Pink' Syringa x 'Vulcan'
Syringa x chinensis 'Lavender Lady' Syringa x chinensis 'Lilac Sunday'
Syringa x hyacinthiflora 'Anabel' Syringa x hyacinthiflora 'Asessippi'
Syringa x hyacinthiflora 'Evangeline' Syringa x hyacinthiflora 'Excel'
Syringa x hyacinthiflora 'Maiden's Blush' Syringa x hyacinthiflora 'Mt. Baker'
Syringa x hyacinthiflora 'Pocahontas' Syringa josikaea 'Bellicent'
Syringa josikaea 'Royalty' Syringa laciniata
Syringa meyeri Syringa meyeri 'Palibin'
Syringa meyeri 'Superba' Syringa oblata var. alba 'Frank Meyer'
Syringa oblata var. dilatata Syringa oblata var. dilatata 'Cheyenne'
Syringa oblata var. giraldii Syringa patula 'Miss Kim'
Syringa pekinensis Syringa pekinensis 'Morton (China Snow®)'
Syringa pekinensis 'Pendula' Syringa x persica
Syringa x prestoniae 'Coral' Syringa x prestoniae 'James Macfarlane'
Syringa x prestoniae 'Minuet' Syringa x prestoniae 'Miss Canada'
Syringa x prestoniae 'Red Wine' Syringa reticulata
Syringa reticulata 'Ivory Silk' Syringa reticulata 'Summer Snow'
Syringa reticulata ssp. amurensis Syringa reticulata ssp. pekinensis
Syringa x tribrida 'Lark Song' Syringa villosa
Syringa vulgaris Syringa vulgaris 'Adelaide Dunbar'
Syringa vulgaris 'Agincourt Beauty' Syringa vulgaris 'Alba'
Syringa vulgaris 'Beauty of Moscow' Syringa vulgaris 'Bridal Memories'
Syringa vulgaris 'Charles Jolly' Syringa vulgaris 'Edward Gardner'
Syringa vulgaris 'Ellen Willmott' Syringa vulgaris 'Fuerst Liechtenstein'
Syringa vulgaris 'Glory' Syringa vulgaris 'Katherine Havemeyer'
Syringa vulgaris 'Macrostachya' Syringa vulgaris 'Mme. Lemoine'
Syringa vulgaris 'Pres. Grevy' Syringa vulgaris 'President Lincoln'
Syringa vulgaris 'Primrose' Syringa vulgaris 'Prof. E. H. Wilson'
Syringa vulgaris 'Romance' Syringa vulgaris 'Ruhn Von Horstenstein'
Syringa vulgaris 'Sensation' Syringa vulgaris 'Tita'