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, parasitic vine
Stem twining, ± thread-like, yellow-green to bright orange, generally glabrous
Leaves 0 or scale-like, ± 2 mm, generally triangular to lanceolate
Inflorescence: cyme or cluster (rarely flowers solitary), generally head- or spike-like, axillary, sometimes bracted
Flower bisexual, radial; calyx generally persistent, lobes generally 4–5, generally overlapped; corolla generally deciduous, < 6 mm, mostly white, tube generally appendaged opposite stamens, lobes 4–5; stamens 4–5, alternate corolla lobes; ovary superior, chambers 2(3), 2-ovuled, styles generally 2, stigma generally 1 per style, generally ± head-like
Fruit: capsule (circumscissile or irregularly dehiscent) or berry-like
Genera in family: 1 genus, ± 150 species: especially Am tropical; some crop pests
Recent taxonomic note: Recently treated within Convolvulaceae [Angiosperm Phylogeny Group 1998 Ann Missouri Bot Gard 85:531–553].
Etymology: (Arabic: ancient name)
| Native |
Inflorescence head- or spike-like; pedicels 0–1.2 mm
Flower 3–4 mm; perianth parts obtuse, gland-dotted, not papillate; calyx appressed, lobes 3–5, generally free, 1–2 mm, unequal, margins irregular; corolla sometimes persistent, 2–4 mm, funnel-shaped, tube longer than wide, lobes 3–4, spreading to erect, 0.6–1.3 mm, unequal, appendages 1.3–2 mm, divisions few, scattered, finger-like; filaments 0.2–0.6 mm, anthers 0.4–0.7 mm; ovary 0.9–2 mm, ± spheric to ovoid, top depressed or not, thickened or not
Fruit sometimes asymmetric; top as ovary
Chromosomes: 2n=60
Ecology: Uncommon. On herbs, near streams, rivers, lakes
Elevation: probably < 3000 m.
Bioregional distribution: Klamath Ranges, Cascade Range, Warner Mountains
Distribution outside California: to Washington, e US, Mexico
| 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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