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 to trees, from membranous bulb, fibrous corm, scaly rhizome, or erect caudex
Stem generally underground
Leaves generally basal, often withering early, alternate, generally ± linear
Inflorescence various, generally bracted
Flower generally bisexual, generally radial; perianth often showy, segments generally 6 in two petal-like whorls (outer sometimes sepal-like), free or fused at base; stamens 6 (or 3 + generally 3 ± petal-like staminodes), filaments sometimes attached to perianth or fused into a tube or crown; ovary superior or inferior, chambers 3, placentas generally axile, style generally 1, stigmas generally 3
Fruit: generally capsule, loculicidal or septicidal (berry or nut)
Genera in family: ± 300 genera, 4600 species: especially ± dry temp and subtropical; many cultivated for ornamental or food;some TOXIC . Here includes genera sometimes treated in Agavaceae, Amaryllidaceae, and other families.
Tree-like subshrubs, dioecious or some flowers bisexual
Stems thick and woody or ± underground
Leaves densely rosetted, 6–20 dm, stiff, sword-like; bases much expanded, white, fleshy
Inflorescence: panicle or raceme-like, scapose, bracted, < 4 m
Flower: perianth parts 6 in 2 petal-like whorls, ± white, < 6 mm; stamens 6, filaments slender; ovary superior, 3-chambered, style and 3 stigmas short, ovules 2 per chamber
Fruit: capsule, papery
Seeds 1–3 per fruit, ovoid
Species in genus: ± 25 species: s US, Mex
Etymology: (P.C. Nolin, 18th century French agriculturist)
Reference: [Munz & Roos 1950 Aliso 2:217–238]
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Stem 3–21 dm, simple to several-branched aboveground (sometimes belowground)
Leaves 65–200 per rosette, 20–40 mm wide just above expanded base, generally green; base 9–23 cm, 5–17 cm wide; margins minutely serrate
Inflorescence 14–38 dm; axis 26–90 mm diam at base; bracts large, ± deltoid, papery, persistent
Seeds 3–4mm, reddish brown
Chromosomes: n=19,20
Ecology: Dry slopes and ridges
Elevation: 900–2100 m.
Bioregional distribution: s High Sierra Nevada (Kern Plateau), e San Bernardino Mountains, Peninsular Ranges, Desert Mountains, Sonoran Desert
Flowering time: May–Jun
Synonyms: subsp. wolfii Munz
Scattered, local. ± coastal plants from WTR (Ventura Co.) and n&w PR that are smaller throughout (except seeds) with n=19 are an undescribed spHorticultural information: SUN, DRN: 1, 2, 3, 7, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 &IRR: 8, 9, 11, 13.
| 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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