Page author: David Giblin
Echinocystis lobata
wild cucumber

Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Idaho, Utah, and Arizona, east across much of North America to the Atlantic Coast.

Habitat: Moist bottomlands and thickets.

Flowers: July-September

Origin: Introduced from central and eastern North America

Growth Duration: Annual

Conservation Status: Not of concern


High-climbing, annual vine, monoecious, with branched tendrils.


Leaves alternate, simple, petiolate, 5-15 cm. long, slightly rough, palmately 5-lobed, the triangular-acute lobes remotely toothed.


The staminate flowers in few-flowered, narrow panicles on short peduncles from the leaf axils; the pistillate flowers usually solitary from the same axils; corolla with a short tube and 6 spreading, narrowly lanceolate lobes 3-6 mm. long and 1 mm. wide; sepals 6, small and bristle-like, inserted in the sinuses of the corolla; stamens 3, ovary 2-celled.


Fruit bladdery-inflated, 3.5-5 cm. long, weakly spiny; seeds flattened, ovate, 1.5 cm. long.

Accepted Name:
Echinocystis lobata (Michx.) Torr. & A. Gray
Publication: Fl. N. Amer. 1(3): 542. 1840.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Echinocystis lobata in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Echinocystis lobata checklist entry

OregonFlora: Echinocystis lobata information

E-Flora BC: Echinocystis lobata atlas page

CalPhotos: Echinocystis lobata photos

4 photographs:
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