|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
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 rhizome, densely shaggy-tomentose
Stem decumbent to ascending, 10100 cm, not or barely climbing
Leaf < 6 cm, < 9 cm wide (generally much smaller), narrowly triangular to ± reniform; lobes 12-tipped; margin not wavy; tip notched to acute
Inflorescence: peduncle 69 cm, < or > subtending leaf; bractlets 720 mm, 515 mm wide, entire, lanceolate to widely ovate, generally acute, generally attached just below calyx and ± concealing it
Flower: sepals 915 mm, ± densely hairy; corolla 2045 mm, white
Ecology: Dry slopes, chaparral
Elevation: 3003500 m.
Bioregional distribution: Cascade Range, Sierra Nevada, San Francisco Bay Area, South Coast Ranges, Western Transverse Ranges
Synonyms: Convolvulus m. Greene
Plant hairs gray (brownish)
Leaf 34.5 cm, 34 cm wide, ± narrowly triangular; lobes generally 1-tipped; tip ± obtuse to acute
Inflorescence: peduncle 69 cm, often > subtending leaf
Ecology: Habitat of sp.
Elevation: 3001900 m.
Bioregional distribution: San Francisco Bay Area, South Coast Ranges, Western Transverse Ranges
Synonyms: Convolvulus m. subsp. p. (Jeps.) Abrams
Intergrades with subsp. malacophylla, C. occidentalis subsp. fulcrata, C. collina subsp. venusta, C. purpurata subsp. p., C. macrostegia subsp. cyclostegia, C. longipes, C. subacaulis
Horticultural information: DRN: 7, 14, 15, 16, 17.