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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 large, fleshy, tuber-like root. Stem: glabrous to scabrous; tendril branched or not. Leaf: lanceolate to round, entire to deeply lobed. Inflorescence: flowers 1 per node, staminate, pistillate at different nodes. Flower: corolla > 2 cm wide (staminate generally < pistillate), deeply cup-shaped, yellow to orange, fused part 4–12 cm, lobes generally recurved; stigmas 3, 2-lobed. Fruit: spheric to oblong, indehiscent; rind firm, smooth to rough or grooved. Seed: many, < 20 mm, ± ovate, ± flat; margin thick or raised.
12–14 species: America. (Latin: gourd) [Sanjur et al. 2002 Proc Natl Acad Sci USA 99:535–540]
Unabridged references: [Montes-Hernandez & Eguiarte 2002 Amer J Bot 89:1156–1163; McVaugh 2001 Cucurbita In W.R. Anderson (ed), Flora Novo-Galiciana 3:510–529, Univ Michigan Herbarium, Ann Arbor, Michigan; Decker 1988 Econ Bot 42:4–15]

Key to Cucurbita

1. Mature plants shrub-like; flowers orange; fruit > 10 cm wide ..... C. pepo var. pepo

1' Mature plants trailing; flowers yellow; fruit < 10 cm wide

2. Leaf blade angular, finely toothed or weakly lobed at base; tendril branched generally > 1 cm from base ..... C. foetidissima

2' Leaf blade deeply lobed, coarsely toothed at base or not; tendril branched ± from base

3. Leaf blade lobes ± lance-linear, distinct ± to petiole ..... C. digitata

3' Leaf blade lobes triangular or wide-lanceolate, distinct ± 1/2 to petiole ..... C. palmata


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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