■(SIB) 'Maggie Lee' 1978, Bellagamba 'Maggie Lee' (Louise Bellagamba, R. 1978). Seedling 275. SIB, 29" (74 cm), Early bloom. Light red violet with small white bla...
■(SIB) 'Majestic Overtures' 2006, Aitken 'Majestic Overtures' ( J. Terry Aitken, R. 2006). Seedling 98SIB 1. SIB (tetraploid), 48" (122 cm), Late midseason to ver...
(SIB) 'Malvacea' 1904, Vilmorin 'Malvacea' (Vilmorin Andrieux et Cie, 1904) SIB. Color Class R1L. I. sibirica x unknown. See below: * References * Synonym ...
■(SIB) 'Maranatha' 1974, Varner 'Maranatha' (Steve Varner, R. 1973). Seedling 177. SIB, 40" (102 cm), Midseason late bloom. Royal purple self; little signal showi...
(SIB) 'Marcus Perry' circa 1930, Perry 'Marcus Perry' (Amos Perry by Jennifer Hewitt, R. 1997) SIB, 30" (76 cm), Early midseason bloom. Standards blue violet (RHS...
■(SIB) 'Marlya' 1974, Varner 'Marlya' ( Steve Varner, R. 1974) Seedling 1154. SIB, 34" (86 cm), Midseason late bloom. Standards deep blue with slight purple influ...
(SIB) 'Martha Le Grand' 1935, Washington 'Martha Le Grand' ( Thomas Washington, R. 1935) SIB. Color Class WW. MARTHA LE GRAND (Washington 1935) S. are slightly op...
■(SIB) 'Mary Louise Michie' 1996, Miller 'Mary Louise Michie' (Anna Mae Miller, R. 1995). Seedling 85.20.24. SIB, height 32" (81 cm), Early to midseason bloom. St...
■(SIB) 'Melton Red Flare' 1989, Thompson Morgan 'Melton Red Flare' ( Thompson Morgan by Keith Sangster, R. 1997) Seedling Seed strain. SIB, 36 43" (91 11...
(SIB) 'Michael Frederick Stevens' 1997, Rebert 'Michael Frederick Stevens' ( J. Owings Rebert, R. 1997) Seedling UG F1. SIB, 28" (71 cm). Midseason bloom. Standar...
(SIB) 'Mildred Stahlman' 1931, Washington 'Mildred Stahlman' ( Thomas Washington, R. 1931) SIB. Color Class B1L. MILDRED STAHLMAN (Washington 1931) Pale china blu...
(SIB) 'Mirza' 1925, Yeld 'Mirza' (George Yeld, R. 1925) SIB. Color Class B7D. I. delavayi x unknown. See below: * * References References: Awaiting ori...
■(SIB) 'Miss Duluth' 1933, Sass 'Miss Duluth' ( Jacob Sass, R. 1931). sic SPU. Color Class B7D. Dark blue self, red tones. Sass, 1933. This was recorded incorrec...
■(SIB) 'Miz Liz' 2025, Hollingworth 'Miz Liz' (Robert Hollingworth, R. 2025). Seedling 14V17A1, SIB (28 chromosomes diploid), 31" (78.5 cm), Early to very early b...
■(SIB) 'Moon Moth' 1973, Delany 'Moon Moth' (Lucy Delany, R. 1962) Seedling 2. SIB, 30" (76 cm), Navy blue self; resembles small Japanese iris. 'Dragonfly' X unkn...
(SIB) 'Moonscape' 1963, Kitton 'Moonscape' (M. E. Kitton, R. 1963) SIB, 42" (107 cm), Late bloom. Blue grey on yellow base self. From two Sibirica subsection hybr...
■(SIB) 'Morning Magic' 1931, Cleveland 'Morning Magic' (Frances Cleveland, R. 1931) SIB. Early bloom. Color Class R1L. See below: * * References Referen...
■(SIB) 'Mountain Lake' 1938, Gersdorff 'Mountain Lake' ( Charles Gersdorff, R. 1933), SIB. Midseason late bloom. Color Class B1M. 'Blue King' x 'Perry's Blue'. Ho...
(SIB) 'Mountain Stream' 1955, Hodson 'Mountain Stream' (E. L. Hodson, R. 1954) SIB, 24" (61 cm), Midseason bloom. Cerulean blue self. 'Gatineau' x 'Mountain Pool'...
■(SIB) 'Mrs. Rowe' 1916, Perry 'Mrs. Rowe' ( 'Amos Perry', 1916). SIB. Color Class S7L. See below: * * References References: From Flowerfield Bulb Farms...
■(SIB) 'Music Royal' 1989/90, Blyth 'Music Royal' ( Barry Blyth, R. 1989). Seedling S257 1. SIB, 32" (81 cm), Midseason to midseason late bloom. Royal blue, few w...
■(SIB) 'My Big Jim' 2009, Cook 'My Big Jim' (Verna Cook, deceased, by Pierce County Iris Society, R. 2005) SIB, 36 40" (91 102 cm), Midseason bloom. Deep blue se...
■(SIB) 'My Love' 1948, Scheffy 'My Love' (Elizabeth Sheffy, R. 1948) SIB. 37". Color Class B1M. Late midseason bloom. Azure blue accented with gold and white haft...
(SIB) 'Mystic Moon' 1933, Gersdorff 'Mystic Moon' ( Charles Gersdorff, R. 1933). SIB. Late bloom. Color Class W4L reversed. 'Blue King' x 'Perry's Blue'. Mai...