|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 or subshrub from woody caudex, glabrous to densely short-hairy
Stem slender and weakly climbing to woody and high-climbing, 19 m
Leaf < 13 cm, generally widely triangular and lobed
Inflorescence: peduncle 1several-flowered, generally > subtending leaf; bractlets 637 mm, 430 mm wide, lanceolate to ± round, entire, flat to sac-like, attached just below calyx and ± concealing it
Flower: sepals 725 mm; corolla 2268 mm, white or fading pink
Ecology: Generally, dry, rocky ± coastal places
Elevation: < 1000 m.
Bioregional distribution: Central Coast, c&s South Coast Ranges, Southwestern California
Distribution outside California: to Mexico
Synonyms: Convolvulus macrostegius Greene, C. occidentalis var. macrostegius (Greene) Munz
Plant becoming ± glabrousSee the CNPS Inventory for information about endangerment and rarity.
Leaf: lobes 23-tipped; sinus widely rounded
Inflorescence: bractlets 1937 mm, 1730 mm wide, widely ovate, strongly keeled to sac-like, tip round to acuminate
Flower: sepals 1625 mm; corolla 4768 mm
Ecology: UNCOMMON. Rocky slopes, canyon walls
Elevation: generally < 100 m.
Bioregional distribution: s Channel Islands. Most like, but larger than, subsp. macrostegia
Horticultural information: 7, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24; GRCVR.