|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
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Perennial (annual), generally twining or trailing
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 12
Fruit: generally capsule
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 85:531553].
(Family description, key to genera by L.T. Dempster)
Perennial, subshrub from caudex or rhizome, glabrous to tomentose
Stem very short to high-climbing, generally twisting and twining
Leaf generally > 1 cm, linear to reniform, often sagittate to hastate, rarely deeply divided
Inflorescence: peduncle generally 1-flowered; bractlets small and remote from calyx to large and concealing calyx, sometimes lobed
Flower generally showy; corolla glabrous, white or yellow to pink or purple; ovary chamber 1 (septa generally incomplete), stigma lobes 2, generally swollen, cylindric or oblong, ± flattened
Fruit ± spheric, ± inflated
Seeds generally ± 4
Species in genus: ± 25 species: temp, worldwide
Etymology: (Greek: concealing calyx, from bractlets of some)
Reference: [Brummitt 1980 Kew Bull 35(2):327328]
Intergradation common; intermediate forms often difficult to identify. Appears similar to Convolvulus , but anatomy suggests that the 2 genera are not very closely related.
Perennial from woody caudex; puberulent to finely tomentose
Stem decumbent to strongly climbing
Leaf: blade generally 1.54 cm at midrib; lobes generally ± distinct, rounded to 2-tipped; sinus rounded to ± square or tapered
Inflorescence: peduncle 14-flowered, < to ± > subtending leaf; bractlets 512 mm, linear to nearly round, sessile or stalked, entire or lobed like leaves, attached 115 mm below calyx, generally ± overlapping but not concealing it
Flower: sepals 915 mm; corolla 2048 mm, white to creamy-yellow
Ecology: Dry slopes, chaparral, pine woods
Elevation: 3002700 m.
Bioregional distribution: Klamath Ranges, North Coast Ranges, High Cascade Range, Sierra Nevada Foothills, High Sierra Nevada, San Francisco Bay Area, Transverse Ranges, Peninsular Ranges, Modoc Plateau
Distribution outside California: Oregon
Synonyms: Convolvulus o. A. Gray
Stem decumbent to strongly climbing, generally > 1 m
Leaf: lobes generally indistinct, generally 2-tipped
Inflorescence: peduncle often > 1-flowered; bractlets attached 17 mm below calyx, 418 mm, 15 mm wide, generally ± linear-oblong, entire
Ecology: Habitat of sp.
Elevation: < 1200 m.
Bioregional distribution: Klamath Ranges, North Coast Ranges, High Cascade Range, High Sierra Nevada, San Francisco Bay Area, Modoc Plateau
Distribution outside California: Oregon
Synonyms: Convolvulus fruticetorum Greene, C. polymorphus Greene
Intergrades with subsp. fulcrata, C. atriplicifolia subsp. buttensis, C. collina subsp. tridactylosa, C. malacophylla, C. peirsonii, C. subacaulis, C. purpurata subsp. p. Plants from CaR, s SN (Greenhorn Mtns), and Teh with leaves ± equilateral, bractlets attached ± 1 mm below calyx, may be called var. tomentella (Greene) Brummitt [Convolvulus t. Greene]
Horticultural information: DRN: 1, 2, 3, 7, 14 &SUN: 15, 16, 17.
|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).|