|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
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 rhizome or caudex. Stem: trailing to high-climbing. Leaf: simple or palmately compound, petioled; blade cordate, lobed or not. Inflorescence: bracts 0. Flower: corolla generally ± funnel-shaped, not or barely lobed; style 1, stigma head-like or of 2–3 spheric lobes. Fruit: spheric; valves 2–4.Key to Ipomoea
500–600 species: tropics, warm temperate; some cultivated as ornamental or for food (Ipomoea batatas (L.) Lam., sweet-potato). (Greek: worm-like) Ipomoea lacunosa L. reported as urban weed from birdseed in Aptos, Santa Cruz Co.
Annual. Leaf: blade 3–8 cm, entire to ± deeply 3–5-lobed, sparsely strigose. Inflorescence: peduncles 1–3(6)-flowered. Flower: sepals 16–25 mm, abruptly narrowed to slender, leaf-like tip, hairs near base 2–6 mm; corolla 2–6 cm, light blue, tube white or pale yellow within.
2n=30. Fields, orchards, disturbed places; 250 m. s California Floristic Province; native Arizona to New Jersey. California plants previously (mis)identified as Ipomoea nil (L.) Roth; in California, evidence of naturalization lacking, possibly occurring only as agricultural weed. [Online Interchange]
Previous taxon: Ipomoea cairica
Next taxon: Ipomoea indica
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Aug 28 2015
Citation for this treatment: [Author of taxon treatment] 2013. Ipomoea, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=29048, accessed on Aug 28 2015
Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.
|Geographic subdivisions indicated for the distribution of Ipomoea hederacea|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
View elevation by latitude chart
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records
CCH collections by month