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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Marah oreganus

Marah oreganus (Torr. ex S. Watson) Howell

Coastal Manroot, Western Wild Cucumber

Cucurbitaceae (Cucumber Family)

Synonym(s): Echinocystis oregana

USDA Symbol: maor3

USDA Native Status: L48 (N), CAN (N)

Western Wild Cucumber is a member of the cucumber family (family Cucurbitaceae). Cucumbers are herbs, often trailing or climbing by coiled tendrils.


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Perennial
Habit: Vine
Leaf Arrangement: Alternate
Fruit Type: Capsule
Size Notes: Stems trailing or climbing, up to about 20 feet long.

Bloom Information

Bloom Color: White , Green
Bloom Time: Feb , Mar , Apr , May , Jun , Jul


Canada: BC

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Seed Network - Corvallis, OR

Web Reference

Webref 62 - Burke Herbarium Image Collection (2020) University of Washington
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Marah oreganus in USDA Plants
FNA: Find Marah oreganus in the Flora of North America (if available)
Google: Search Google for Marah oreganus


Record Modified: 2023-06-07
Research By: TWC Staff

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