Jepson eFlora
Key to families | Table of families and genera

Key to Cucurbitaceae

View taxon page for Cucurbitaceae

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Corolla white to ± green or cream, < 2 cm wide; staminate flowers generally in racemes, panicles, or small clusters, pistillate flowers 1 or in small clusters, generally at same nodes as staminate; fruit generally prickly, irregular-dehiscent or not; seeds generally not flat

2. Staminate flower < 3 mm wide; fruit asymmetric, < 1 cm, beak ± = body; Desert ..... BRANDEGEA

2' Staminate flower >= 3 mm wide; fruit ± symmetric, > 2 cm, beak << body or 0; California Floristic Province, Desert ..... MARAH

1' Corolla yellow to orange, generally 2–12 cm wide; staminate, pistillate flowers 1–few, generally at different nodes; fruit generally unarmed (prickly in some Cucumis), gourd- or melon-like, indehiscent; seeds ± flat

3. Corolla > 3 cm wide, deeply cup-shaped, fused part > 3 cm; annual or perennial herb from large, tuber-like root ..... CUCURBITA

3' Corolla generally < 3 cm wide, shallowly rotate to cup-shaped, fused part < 1 cm; annual

4. Tendril branched; fruit > 6 cm wide; leaf ± palmately lobed, 1° lobes ± pinnately lobed ..... CITRULLUS

4' Tendril unbranched; fruit 2–6 cm wide; leaf angular or ± palmately lobed, 1° lobes, if present, ± entire or irregularly lobed ..... CUCUMIS


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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