■ (SPEC) Iris sambucina L. or see also TB 'Sambucina' 1759, Botanical author Linneaus The first botanist referring to "elder scented" (odore sambuci) irises was C...
(Spec) 'Sangardak' YYYY, HYBRIDIZER 'Sangardak'. Subgenus Scorpiris, (Juno). Flower white infused blue, and blue edge to the fall. The yellow blotch on the fall h...
(Spec) 'Sanglok' 2006?, Ruksans 'Sanglok' (Janis Ruksans, unregistered) Subgenus Scorpiris (Juno). Deep Yellow flowers and prominent dark brown blotches on either...
(SPEC) Iris sanguinea var. nana YYYY, Hager 'Iris sanguinea Nana' ( Ben Hager, ). Series Sibiricae . "Iris sanguinea 'Nana' (5 7 in. in flower) A miniature vers...
■ (SPEC) Iris sanguinea var. nana forma alba 1990, We Du ‘Nana Alba’. (Weaver, Richard and Renè Duval, 1990). Series Sibiricae. “Iris sanguinea ‘Nana Alba’ (5 7 ...
(SPEC) Iris sari var. lurida 1887, Foster Baker Iris sari_ var. _lurida ( Sir Michael Foster, 1887). gives the following; Tab. 6960. IRIS Sari, variety lurida….
(SPEC) 'Sasha' 1931, Alexander 'Sasha' (Edward Johnston Alexander, 1931, Slidell, Louisiana). Series Laevigatae. Color Code B1L; Light blue self. Form of Iris vir...
(SPEC) Iris schischkinii Grossheim 1947, Grossheim Iris schischkinii Grossheim. ( Alexander Grossheim, 1947, near lake Batabad, above the town of Bitschenach, Nak...
(SPEC) 'Schizolopha' 1931, Alexander 'Schizolopha' (Edward Johnston Alexander, R. 1931). Vinicolores Section; Color Code S4; Alexander describes it as "Flower sta...
(SPEC) 'Seattle' 2002, Service 'Seattle' (Nigel Service, 2002). Section Iris; Iris germanica 'Seattle'. See below: * References References Described in SI...
■ (SPEC) Iris serotina 1860, Willkomm Lange Iris serotina Willk ( Moritz Willkomm and Johan Lange, 1860, Southeastern Spain, and the middle Atlas and Rif Mo...
■(SPEC) 'Seti Na Beregu' 2013, Loktev 'Seti Na Beregu' Сети на берегу (Sergey Loktev, R. 2012) Seedling #Z1 9. SPEC (lactea), 15 (38 cm), Midseason bloom. Standar...
(Spec) Iris setosa forma alpina Komarov YYYY, Botanical author Komarov 'Alpina' Iris setosa forma alpina Komarov (Vladimir Komarov. A Siberian form with a very sh...
(Spec) Iris setosa variety interior (Anderson) Hulten 1936, Anderson 'Interior' ( Edgar Anderson, 1936) Originally described by Anderson in . The variety of Iris...
(Spec) Iris setosa forma serotina Kom. YYYY, Komarov 'Serotina'. (Vladimir Komarov). Series Tripetalae. A Siberian form with solitary, stemless flowers." The Eur...
(Spec) Iris setosa subspecies setosa Pallas YYYY, Pallas Subspecies setosa. (Peter Pallas). The type of Iris setosa Pallas. Found originally in Northern Asia. ...
(Spec) 'Tricuspis' 1794, Dicksons 'Tricuspis' ( George Dickson's Company, 1794). D Trip; Blue dwarf; Dickson 1794; As Iris tricuspis dubia; (a form of Iris setos...
(SPEC) Iris dichotoma 'Shilka' 1939, Collected by Prof. N. E. Hansen near Shilka, Siberia 'Shilka' Probably unregistered form of the vesper Iris Iris dichotoma Se...
■ (SPEC) 'Shrevei' 1927, Small 'Shrevei' (John Kunkel Small, 1927, collected Central U.S.A) Laev B; A variety of I. virginica with longer branches and capsules t...
■ (SPEC) Iris sibirica L. 1753, Botanical author Linnaeus Iris sibirica L. ( Carl Linnaeus, 1753, Central Europe Russia); Section Limniris, Series Sibiricae;...
(SPEC) Iris sieheana Lynch 1904, Richard Lynch Iris_ _sieheana (Richard Lynch 1904). Book of the Iris: 184 (1904). 133. I. Sieheana, mihi ; I. Haussknechti, Siehe...
(SPEC) 'Slowpoke' 1993, Ennenga 'Slowpoke' (James Ennenga, R. 1993) SPEC (I. brevicaulis), 14" (36 cm). Late bloom. Violet blue (RHS 93B), white signal with yello...
(SPEC) 'Snookumchuck Fairy' 1958, Hubbard 'Snookumchuck Fairy' (Mrs. W. R. Hubbard, R. 1958) I. tenax , 10" (25 cm). Midseason bloom. Pure white, yellow signal l...
(SPEC) 'Snowbird' 1922, Andrews 'Snowbord' ( Darwin Maxon Andrews, R. 1920). Series Longipetalae. "16" (40 cm). Like type, but flowers a snow white with no veinin...
(SPEC) 'Solnechny' 2016, Loktev 'Solnechny' Солнечный (Sergey Loktev, R. 2016). Seedling# P 02 2. SPEC (pseudacorus), 30.5" (77 cm). Early to late bloom. Standard...
(Spec) Iris songarica Schrenk. 1841, Schrenk Iris songarica Schrenk ( Alexander Gustov von Schrenk. Subgenus Limniris, Series Tenuifoliae; Schrenk in Enum. Pl. No...
■ (SPEC) Iris spuria L. Iris spuria L. (Carl Linnaeus, 1753, Central and southern Europe, Spain to Persia, Algeria); Section Limniris, Series Spuriae, Spur BD; Da...
(Spec) Iris squalens L. 1759, Botanical author Linnaeus 'Squalens' (Wild hybrid, Carl Linnaeus, 1759, Central Europe to the Caucasus and Armenia). TB; Late seaso...
(Spec) 'Stavordale Tiger' 1989, Broadleigh 'Stavordale Tiger'. (Broadleigh Gardens). Series Unguiculares. 15" (37 cm), "We were given this plant some years ago. T...
(SPEC) Iris straussii Leichtlin ex Micheli 1899, Leichtlin Iris straussii (Max Leichtlin ex Micheli, Rev. Hort. (Paris) 71: 363 (1899). There seems to be a lot of...
(SPEC) 'Stylosa Superba' 1933, Perry 'Stylosa Superba' Recorded in the 1939 with no registration date but an introduction date by Amos Perry 1933, 1939. Unguicula...
(SPEC) Iris subfulva Small aka 'Subfulva' 1931, Small 'Subfulva' (John Kunkel Small, R. 1931, S. Louisiana). Vinicolores Section; Color Code R; Flower stalk erect...
■(SPEC) 'Sue's Memory' 2020, Nelson 'Sue's Memory' (Dr. E. Charles Nelson, R. 2020) SPEC (lazica), 6" (15 cm), Early to late season bloom. Lavender blue (RHS ...
■ (Spec) 'Sulphur Queen' YYYY, HYBRIDIZER? 'Sulphur Queen' An unregistered cultivar of Iris pseudacorus that has been listed since 1990 perhaps longer in the tr...
■ (SPEC) 'Summer Azure' 2002, Schafer Sacks 'Summer Azure' ( Marty Schafer and Jan Sacks, R. 2002) SPEC (prismatica), 18" (46 cm), M. S. light blue (RHS 97B),...
(SPEC) 'Susanna Maria' 1901, Van Tubergen 'Susanna Maria' (Van Tubergen, 1901) English Iris; color code B2L Van Tubergen 1911; See below: * * References Refe...
■ (SPEC) 'Suslik' 1996, Burton 'Suslik' (John Burton II, R. 1995). Seedling #CP4. SPEC (Iris pumila), 4.5" (11 cm), Early bloom. Dark red violet, deeper around ve...
(Spec) Iris suworowi Regel 1886, Regel 'Suworowi' (Eduard August Regel, 1886). As Iris surowori Regel in Acta Horti Petrop. IX. 619 (1886) and in Gartenflora, XXX...
■ (SPEC) 'Swords Of Murex' 2001, Alexander 'Swords Of Murex' (Barbara Alexander, R. 2000) SPEC (I. versicolor), 22" (56 cm), Midseason bloom. Standards medium t...