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 (annual), generally twining or trailing
Leaves alternate
Inflorescence: cyme or flowers solitary in axils; pedicels often with 2 bracts
Flower bisexual, radial; sepals 5, ± free, overlapping, persistent, often unequal; corolla generally showy, generally bell-shaped, ± shallowly 5-lobed, generally pleated and twisted in bud; stamens 5, epipetalous; pistil 1, ovary superior, chambers generally 2, ovules generally 2 per chamber, styles 1–2
Fruit: generally capsule
Seeds 1–4(6)
Genera in family: 50 genera, 1,000 species: warm temp to tropical; some cultivated as ornamental
Recent taxonomic note: Recently treated to include Cuscutaceae [Angiosperm Phylogeny Group 1998 Ann Missouri Bot Gard 85:531–553].
(Family description, key to genera by L.T. Dempster)
Annual, perennial herb from rhizome or caudex
Stem trailing to high-climbing
Leaf petioled; blade cordate, sometimes lobed
Inflorescence: bracts 0
Flower: corolla generally ± funnel-shaped, not or barely lobed; style 1, stigma head-like or of 2–3 spheric lobes
Fruit spheric; valves 2–4
Etymology: (Greek: worm-like)
Species in genus: 500 species: tropical and warm temp; some cultivated as ornamental or for food (I. batatas, sweet-potato).
| Introduced |
Annual
Leaf simple; blade 3–6 cm, cordate, ± acuminate, entire or 3-lobed, glabrous
Inflorescence: peduncles 1–5-flowered
Flower: sepals ± 8 mm, ± narrowly ovate, acuminate; corolla 1.2–2 cm, narrowly bell-shaped, shallowly 5-lobed
Chromosomes: 2n=30
Ecology: Fields, orchards, other disturbed places
Elevation: -34–50 m.
Bioregional distribution: Sonoran Desert
Distribution outside California: native to tropical America
Weedy.
| 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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