Jepson Flora Project: Jepson Interchange |
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TREATMENT FROM THE JEPSON MANUAL (1993) |
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Jepson Interchange (more information) |
©Copyright 1993 by the Regents of the University of California
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AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY |
Perennial, bulbed, cormed, or rhizomed
Stem generally erect
Leaves generally basal (a few cauline), 2-ranked, ± linear, generally grass-like, generally sharply folded along midrib; bases overlapping, sheathing
Inflorescence: spike, raceme, panicle, ± terminal, or flowers solitary; bracts ± like leaf bases, sheathing
Flower generally bisexual, generally radial; hypanthium fused to ovary; perianth parts generally fused into tube above ovary, generally petal-like, in 2 series of 3, outer (sepals) generally ± like inner (petals); stamens 3, generally attached to sepals, filaments fused below into a tube or not; ovary inferior, 3-chambered, placentas generally axile, style 1, each of 3 branches entire or 2-branched or -lobed, petal-like or not, with stigma on under surface instead of at tip
Fruit: capsule, loculicidal
Seeds fewmany
Genera in family: 80 genera, ± 1500 species: worldwide, especially Africa; many cultivated (e.g., Iris, Gladiolus, Crocus, Freesia ).
Perennial; rhizome creeping or ± tuber-like
Inflorescence: flowers 1many
Flower: perianth parts clawed, sepals (wider, spreading or reflexed) unlike petals (generally narrower, erect); style branches ± petal-like, arching over stamens, each with flat, scale-like stigma on surface facing stamen, just below generally 2-lobed tip (crest)
Seeds compressed, pitted
Species in genus: Perhaps 150 species: generally n temp
Etymology: (Greek: rainbow, from flower colors)
Reference: [Lenz 1958 Aliso 4:172; Clarkson 1959 Madroño 15:115122]
Hybrids are common, especially in I. tenax alliance; some authors lump taxa recognized here. Horticultural information: Pacific Iris hybrids; CVS.
Native |
Rhizome 1025 mm diam
Stem 36 dm, generally with 12 leaves
Leaf 49 mm wide
Inflorescence: flowers 36; lowest 2 bracts alternate, 0.510 cm apart, rarely opposite, lower or outer of these 715 cm
Flower: perianth lilac-purple with darker veins, tube 513 mm, sepals 610 cm, generally 3050 mm wide, petals notched at tip; style branches < 40 mm, crests < 15 mm, stigmas ± 2-lobed
Chromosomes: 2n=8688
Ecology: Moist, open places
Elevation: < 600 m.
Bioregional distribution: c&s North Coast, s Outer North Coast Ranges, n&c Central Coast, San Francisco Bay AreaHorticultural information: 4, 5, 6, 17; IRR: 24 &SHD: 7, 14, 15, 16, 19, 20, 21, 22, 23.