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PlantFiles: Oregon Manroot, Coastal Manroot, Wild Cucumber
Marah oreganus

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Family: Cucurbitaceae (koo-ker-bih-TAY-see-ee) (Info)
Genus: Marah (MAIR-uh) (Info)
Species: oreganus ( or-reh-GAH-nus) (Info)

Synonym:Echinocystis oregana

One member has or wants this plant for trade.

Category:
Vines and Climbers

Height:
over 40 ft. (12 m)

Spacing:
Unknown - Tell us

Hardiness:
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Sun to Partial Shade
Partial to Full Shade

Danger:
Seed is poisonous if ingested

Bloom Color:
White/Near White
Inconspicuous/none

Bloom Time:
Mid Spring
Late Spring/Early Summer

Foliage:
Deciduous

Other details:
May be a noxious weed or invasive

Soil pH requirements:
Unknown - Tell us

Patent Information:
Non-patented

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Bag seedheads to capture ripening seed

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to view:

By millern
Thumbnail #1 of Marah oreganus by millern

By GardenGuyKin
Thumbnail #2 of Marah oreganus by GardenGuyKin

By GardenGuyKin
Thumbnail #3 of Marah oreganus by GardenGuyKin

By GardenGuyKin
Thumbnail #4 of Marah oreganus by GardenGuyKin

By EolaWindsFarm
Thumbnail #5 of Marah oreganus by EolaWindsFarm

By EolaWindsFarm
Thumbnail #6 of Marah oreganus by EolaWindsFarm

By Strever
Thumbnail #7 of Marah oreganus by Strever

There are a total of 12 photos.
Click here to view them all!

Profile:

No positives
2 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral growin On Jul 10, 2013, growin from Vancouver, BC (Zone 8b) wrote:

I just ripped out a huge amount of foliage that was covering everything in my small yard. I need to find the tuber and treat it like caudiciform with the root above ground. It had become just too much to appreciate and I'm noticing seedlings popping up everywhere in the neighbourhood. It is native but it does need to be controlled or it will smother everything.

Neutral AnalogDog On Sep 10, 2010, AnalogDog from Mountlake Terrace, WA (Zone 8a) wrote:

This plant is native to the west coast of the North America into BC. It is prized for its caudex which can be in excess of 100 pounds. It is also common within its area which is under about 1000' of elevation.
I have found the plant but not in an area that I could collect it.

Regional...

This plant has been said to grow in the following regions:

Crescent City, California
Amity, Oregon
Blodgett, Oregon
Salem, Oregon
Mountlake Terrace, Washington



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