477:. They impart a bitter flavor which serve as a natural pest deterrent. When ingested they can lead to various degrees of gastrointestinal upset and dehydration. Although data for this specific variety of wild cucumber is limited, case reports of ingestion of other species within the Cucurbitaceae family have been found to induce severe illness requiring intensive care support to treat dehydration from the profound gastrointestinal distress. There is no specific antidote.
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Coastal manroot has the least pubescent bud, leaves, and branches of all the manroot species. Populations in more northern climates are nearly hairless with glossy leaves. Vines appear in late winter or early spring in response to increased rainfall, and can climb or scramble to a length of 6m. Its
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Coastal manroot grows most vigorously by streams or in washes but can also be successful in dryer areas, at elevations up to 1600 metres. It will tolerate a variety of soil types and acidities, but it requires at least seasonally moist soil. Vines can grow in full-sun to heavily shaded conditions.
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species, coastal manroot seeds are more flattened and disc-like. Fruit usually hold 4 or more seeds. Seeds have an intriguing germination process. The initial shoot emerges from the seed and grows downward into the earth. This shoot then splits, one part beginning to swell and form the tuber, while
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The fruit is spherical, 4–5 cm in diameter, and covered in prickles of variable density, up to 1 cm long but without hooks. Unripe fruit are bright green, ripening to yellow. The fruit swells as it ripens until finally rupturing and releasing the large seeds. Fruit begin to form in spring
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which can reach several meters in length and weigh in excess of 100 kg. Newly exposed tubers can be seen along roadcuts or eroded slopes and have a scaly, tan-colored surface. Injured or decaying tubers take on a golden or orange color.
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leaves typically have five lobes with individual plants showing wide variation in leaf size and lobe length. Although leaf size is highly variable, coastal manroot tends to have larger leaves than other
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410:. In cold winter areas, vines die back in fall. In areas with seasonal wetness, vines emerge at the beginning of the wet season and die back completely in the dry season.
426:). The fruit is inedible. Some Native Americans may have consumed the seeds to commit suicide. The large tuber of the manroot can be processed for a soap-like extract.
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Angert T, Von Derau K, Horowitz BZ, Giffin S. “Toxic Squash
Syndrome: a case series of diarrheal illness following ingestion of bitter squash, 1999-2011.”
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The flower can vary in color from yellowish green to cream to white. Flowers appear soon after the vine emerges. The flowers are
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Wildflowers of Oregon: A Field Guide to Over 400 Wildflowers, Trees, and Shrubs of the Coast, Cascades, and High Desert
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Seeds of the coastal manroot are large, hard, and smooth. Unlike the bullet-shaped seeds of other
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The leaves and fruit contain high concentrations of tetracyclic triterpenoid compounds known as
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Northwest
Foraging: The Classic Guide to Edible Plants of the Pacific Northwest
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made a decoction to treat venereal disease, kidney trouble and scrofula sores.
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In mild areas of its range where year-round moisture is available, vines are
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the second part grows back to the surface and becomes the vine.
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These compounds have also been reported to induce delayed
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mashed the upper stalk in water to dip aching hands. The
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burned the root and mixed the resulting powder with
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Plants used in traditional Native
American medicine
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49:. Unsourced material may be challenged and removed.
1052:Natural history of the California Coast Ranges
680:"Hair Loss Associated With Cucurbit Poisoning"
335:. It ranges from California north to Canada.
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1032:Flora of the West Coast of the United States
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109:Learn how and when to remove this message
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445:made a poultice from the gourd. The
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397:The seeds may be fatally poisonous.
47:adding citations to reliable sources
484:although the mechanism is unknown.
729:Jepson Herbarium eFlora taxon Page
565:University of California, Berkeley
441:for various health problems. The
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981:urn:lsid:ipni.org:names:152840-2
678:Assouly, Philippe (2018-05-01).
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381:and ripen in summer.
329:western wild-cucumber
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734:USDA Plants Profile
457:grease to apply to
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41:Please help
36:verification
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955:kew-2373181
872:iNaturalist
782:Wikispecies
461:sores. The
186:Angiosperms
1021:Categories
950:Plant List
796:Calflora:
649:1073035766
543:References
366:monoecious
69:newspapers
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704:2168-6068
610:668195076
561:CalPhotos
408:perennial
348:species.
250:Species:
156:Kingdom:
99:July 2011
1001:VASCAN:
989:Tropicos
903:10455617
890:152840-2
773:Q3845272
767:Wikidata
712:29590275
662:Kusin S,
570:July 31,
482:alopecia
469:Toxicity
459:scrofula
298:Synonyms
228:Family:
199:Eudicots
994:9200475
851:2874545
537:Flowers
488:Gallery
447:Squaxin
443:Chinook
370:insects
339:Foliage
286:S.Wats.
238:Genus:
218:Order:
160:Plantae
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319:, the
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212:Rosids
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968:MAOR3
898:IRMNG
877:77960
825:ECNOR
812:3XY8B
799:11823
420:Marah
391:Marah
376:Fruit
346:Marah
282:Torr.
243:Marah
206:Clade
193:Clade
180:Clade
167:Clade
90:JSTOR
76:books
1004:4697
976:POWO
924:NCBI
911:ITIS
885:IPNI
859:GRIN
846:GBIF
820:EPPO
708:PMID
700:ISSN
645:OCLC
635:ISBN
606:OCLC
596:ISBN
572:2011
525:Leaf
455:bear
414:Uses
62:news
833:FNA
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692:doi
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284:ex
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