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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual, perennial herb, subshrub, generally twining or trailing. Leaf: 0 or alternate. Inflorescence: cyme or flowers 1 in axils; bracts subtending flowers 0 or 2. Flower: bisexual, radial; sepals (4)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, each generally 2-ovuled, styles 1–2. Fruit: generally capsule. Seed: 1–4(6).
55–60 genera, 1600–1700 species: warm temperate to tropics; some cultivated for food or as ornamental (Ipomoea). [Stefanovic et al. 2003 Syst Bot 28:791–806] Monophyletic only if Cuscutaceae included, as treated here. Ipomoea cairica (L.) Sweet, Ipomoea hederacea Jacq. [Ipomoea nil L., misappl.], Ipomoea indica (Burm.) Merr. (including Ipomoea mutabilis Ker Gawl.), Ipomoea purpurea (L.) Roth, Ipomoea triloba L., all included in TJM (1993), not naturalized. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Angiosperm Phylogeny Group 1998 Ann Missouri Bot Gard 85:531–553; Stefanovic et al. 2002 Amer J Bot 89:1510–1522]
Key to Convolvulaceae
Annual, perennial herb from caudex or rhizome, generally ± glabrous. Stem: generally trailing to high-climbing, generally twisting, twining. Leaf: generally > 1 cm, generally petioled, generally cordate or hastate. Inflorescence: bracts generally 2, > 1 mm below calyx, not hiding it. Flower: generally showy; corolla generally funnel-shaped, pleated, 5-angled or -lobed; stamens included; ovary chambers 2, septa complete, stigma lobes 2, linear to narrowly spoon-shaped, tips acute. Fruit: spheric, ± inflated. Seed: generally 4.Key to Convolvulus
250 species: generally temperate. (Latin, entwine) Not easily distinguished from Calystegia.
Perennial herb. Stem: climbing. Leaf: 3–4 cm, lower shallowly lobed or notched, upper deeply 3–many-lobed. Inflorescence: peduncle 3–4 cm, 1-flowered, reflexed below flower. Flower: calyx 10–11 mm, lobes unequal, widely ovate or spoon-shaped; corolla 3–4 cm, funnel-shaped, purple to deep pink.
2n=40. Disturbed places; < 1000 m. Southwestern California (reported from Sierra Nevada Foothills); native to Mediterranean. May–Oct [Online Interchange]
Previous taxon: Convolvulus
Next taxon: Convolvulus arvensis
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 11 2014
Citation for this treatment: [Author of taxon treatment] 2012. Convolvulus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=20202, accessed on Mar 11 2014
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© 2005 Luigi Rignanese
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