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 |
Annual or perennial herb, generally fleshy
Stems generally glabrous
Leaves simple, alternate or opposite, sometimes stipuled
Inflorescence various
Flower bisexual, radial; sepals generally 2(–8), free or fused at base; petals 3–18, free or ± fused; stamens 1–many, free or inserted on corolla; ovary superior or partly inferior, chamber 1, placenta free-central or basal; styles 2–8, generally fused at base
Fruit: capsule, circumscissile or 2–3-valved
Seeds 1–many, generally black, generally shiny
Genera in family: ± 20 genera, ± 400 species: generally temp Am, Australia, s Africa; some cultivated (Lewisia, Portulaca, Calandrinia )
Reference: [Bogle 1969 J Arnold Arbor 50:566–598]
Family description and key to genera by Dieter H. Wilken & Walter A. Kelley.
Annual, ± fleshy
Stems several–many, spreading to erect
Leaves simple, alternate or opposite, upper 2–5 forming involucre; blade linear, ovate, or spoon-shaped, flat or cylindric
Inflorescence: flowers solitary or in clusters at stem tips
Flower: sepals 2, fused at base, lower portion fused to ovary and persistent in fruit; petals 4–6, inserted on calyx, yellow; stamens 4–20; ovary ± inferior, 1-chambered; style 3–6-branched
Fruit: capsule, circumscissile
Seeds many, reniform, ± tuberculate
Species in genus: 100 species: warm regions worldwide
Etymology: (Probably Latin: small gate or door, from capsule lid)
Reference: [Matthews & Levins 1985 Sida 11(1):45–61]
| Native |
Stem spreading to ascending, 1–6 cm
Leaf 3–15 mm, ± linear, ± cylindric
Inflorescence: flowers in clusters of 2–10 at stem tips
Flower: sepals 1–2.5 mm, generally reddish, not keeled; petals 1–2.5 mm, yellow, drying reddish; stamens 4–15; style 3–5-branched
Fruit 1–3 mm wide
Seed 0.5–0.8 mm wide, black or metallic silver
Ecology: Uncommon. Sandy washes, flats
Elevation: 1000–1200 m.
Bioregional distribution: Desert Mountains (Little San Bernardino Mtns, New York Mtns)
Distribution outside California: to Texas, n Mexico
Synonyms: P. parvula A. Gray
CA plants reported as P. mundula I.M. Johnst. (desert portulaca, UNCOMMON) appear to belong here; additional study needed.
See the CNPS Inventory for information about endangerment and rarity.| 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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