Jepson Interchange (more information)
Print edition is available from the University of California Press
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This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants. |
| Jepson Flora Project: Jepson Interchange |
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TREATMENT FROM THE JEPSON MANUAL |
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Jepson Interchange (more information) |
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©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press |
| The second edition of The Jepson Manual (2012) is available from the University of California Press | |
| See also the Jepson eFlora, which parallels the Second Edition |
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 few–many
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 1–many
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 4:1–72; Clarkson 1959 Madroño 15:115–122]
Hybrids are common, especially in I. tenax alliance; some authors lump taxa recognized here. Horticultural information: Pacific Iris hybrids; CVS.
| Native |
Rhizome 5–9 mm diam
Stem 0.5–4 dm
Leaf generally 2–10 mm wide
Inflorescence: flowers 1–3; lowest 2 bracts generally alternate, up to 9 cm apart, lowermost 5–12.5 cm, 3–9 mm wide
Flower: perianth generally pale yellow or cream with darker veins, sometimes deep yellow, lavender, purple, or bluish violet, tube 5–15 mm, sepals 4–7 cm, 14–27 mm wide, petals 3.5–6 cm, 5–14 mm wide, narrowly oblanceolate; style branches 16–30 mm, crests 5–15 mm, stigmas triangular
Ecology: Open or partly shaded slopes
Elevation: 600–2300 m.
Bioregional distribution: s Cascade Range, Sierra Nevada, San Gabriel Mountains, San Bernardino Mountains, San Jacinto Mountains.
| Native |
Leaf: base generally pinkish
Inflorescence: flowers 2; lowest bract 6–9 mm wide
Flower: perianth purple to bluish violet
Chromosomes: 2n=40
Ecology: Common. Partial shade in yellow-pine forests
Elevation: 1600–2300 m.
Bioregional distribution: e San Gabriel Mountains, San Bernardino Mountains, San Jacinto Mountains
| YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps). |
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