|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
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 45, generally overlapped; corolla generally deciduous, < 6 mm, mostly white, tube generally appendaged opposite stamens, lobes 45; stamens 45, 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 85:531553].
Etymology: (Arabic: ancient name)
Inflorescence loose, spike-like, few-flowered; pedicels 03.3 mm
Flower 24 mm; calyx persistent, lobes 5, 0.31.5 mm, finely toothed, acute to obtuse; corolla generally persistent, 23 mm, shallowly bell- to urn-shaped, tube generally shorter than wide, lobes 5, becoming reflexed, tube, widely ovate, obtuse, appendages 0.71.4 mm, divisions 0few, knob-like; ovary ± 12 mm, conic, top acute
Ecology: On herbs or especially shrubs in creosote-bush scrub, Joshua-tree woodland
Elevation: generally < 1300 m.
Bioregional distribution: White and Inyo Mountains, Desert
Distribution outside California: to Utah, Arizona, Baja California
Flowering time: MayOct
Plants with acute calyx lobes have been called C. veatchii Brandegee.