(SPEC) 'Talischii' 1900, Foster 'Talischii' Considered a form of Iris imbricata. Iris talischi Sprenger, Bull. Soc. Tosc. Ortic. 1901: 328 (1901). 1970 The Eupog...
(Spec) 'Tashkent' YYYY, Hybridizer/collector? 'Tashkent' (unregistered) Subgenus Scorpiris (Juno) Butter yellow self. The undulate crest the same deep yellow colo...
■ (SPEC) Iris tenax Doug. 1829, Botanical author Douglas Iris tenax Douglas ( David Douglas, 1829, Washington and Oregon); CA ( Series Californicae ); height 6 14...
■ (SPEC) Iris tenuissima Botanican author Dykes, 1912 Iris tenuissima Dykes (W. R. Dykes1912). Flower color is typically cream or off white, veined in gold or vio...
(SPEC) 'Tetrafor' 1964, Steiger 'Tetrafor' ( Max Steiger, R. 1964) I. forrestii, 8" (20 cm), Extra early bloom. Yellow self. Colchicine treated I. forrestii . ...
(SPEC) 'Tetratec' 1964, Steiger 'Tetratec' ( Max Steiger, R. 1964) I. tectorum, 28" (71 cm), Early bloom. Standards light violet; falls blue violet, dark points. ...
(SPEC) Iris thomasii Small aka'Thomasii' 1931, Small 'Thomasii' ( John Kunkel Small, R. 1931). Vinicolores Section; 36" (90 cm); Color Code S9L; A brilliant red p...
■ (SPEC) Iris thompsonii R. C. Foster 1937, Botanical author Robert C. Foster Iris thompsonii R. C. Foster (Robert C. Foster, 1937). Series Californicae . Flo...
(SPEC) 'Tolmeiana' now =Iris missouriensis YYYY, Hybridizer 'Tolmeiana' I. Tolmieana, Herbert in Hook, et Am. Bot. Beech, p. 395 396; Main.RPries 2011 03 0...
■ (Spec) 'Top Gold' before 2002, Paul Christian 'Top Gold' ( unregistered), Subgenus Scorpiris (Juno). April May bloom season after Reticulatas and at beginning ...
■(SPEC) 'Transylvania Native' 1994, Tankesley Clarke 'Transylvania Native' ( Eric and Bob Tankesley Clarke, R. 1994) SPEC (aphylla), 13" (33 cm). Early bloom. B...
(SPEC) 'Tripetala' 1788, Walter 'Tripetala' (Thomas Walter, 1788) Synonym for Iris tridentata Pursh. Originally described in References: Floral Cabinet 66. 1788;...
(SPEC) Iris trippneriana E.Peter 1938, Peter Iris trippneriana (E.Peter, in Oesterr. Bot. Z. 87: 129 (1938)). As yet unplaced in Kew's World Checklist. Main....
■ (SPEC) Iris trojana Kerner ex Stapf 1887, Botanical author Kerner ex Stapf Iris trojana Kerner ex Stapf. (Anton Joseph Kerner von Marilaun, 1887, Western Asia M...
■ (SPEC) Iris tuberosa L. 1753, Botanical author Linneaus Iris tuberosa L. (Carolus Linnaeus, 1753, Mediterranean areas southeastern France and northern Africa to...
(SPEC) Iris tyriana Small aka 'Tyriana' 1931, Small 'Tyriana' (John Kunkel Small, R. 1931). Vinicolores Section; R; Red. Small describes as "Flower stalk erect, s...