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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.


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.
250 species: generally temperate. (Latin, entwine) Not easily distinguished from Calystegia.

Key to Convolvulus

1. Upper leaves deeply 3–many-lobed, lobes ± linear ..... [C. althaeoides]

1' Upper leaves entire to hastate, lobes wider than linear

2. Leaf hastate, petioled; corolla white, ± pink abaxially, especially at folds ..... C. arvensis

2' Leaf obovate to oblanceolate, ± sessile, narrowed to base; corolla pale-pink or -blue or white with yellow base, blue tips

3. Corolla ± 0.6 cm, pale-pink or -blue ..... C. simulans

3' Corolla 1.4–4 cm, center yellow, perimeter blue-purple, white between ..... [C. tricolor]


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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