|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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
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.
Rhizome 2030 mm diam
Stem 25 dm, sometimes branched
Leaf 39 mm wide; base sometimes purplish
Inflorescence: flowers 12; lowest 2 bracts opposite, generally scarious, outermost 48 cm, 57 mm wide
Flower: perianth pale lilac to whitish with lilac-purple veins, tube < 12 mm, sepals < 6 cm, 2 cm wide; style branches < 25 mm, crests averaging 8 mm, stigmas 2-lobed
Ecology: Moist, grassy places
Elevation: 9003400 m.
Bioregional distribution: North Coast Ranges, Sierra Nevada, Inner South Coast Ranges, Transverse Ranges, Peninsular Ranges, Great Basin Floristic Province
Distribution outside California: much of w N.America, n Mexico
Flowering time: MayJun
Horticultural information: IRR: 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 14, 15, 16, 18, 19, 20, 21.