Marah oregana (Torr. ex S. Watson) Howell
manroot
Cucurbitaceae (Cucumber family)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #9434)


Map

E-Flora BC Static Map

Distribution of Marah oregana
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Species Information

General:
Climbing perennial from an enlarged woody root; annual stems climbing or trailing with branched tendrils.
Leaves:
Stem leaves alternate, irregularly palmately lobed, stalked, bristly above, sparsely hairy below, heart-shaped at the base, about 20 cm long.
Flowers:
Inflorescence of bell-shaped flowers in a panicle; perianths bell-shaped, whitish, with 5 to 8 petals/sepals; male flowers in narrow-stalked clusters from the leaf axils; single female flowers short-stalked from the same axils as the male flowers; corolla lobes flaring, oblong egg-shaped.
Fruits:
Inflated, weakly spiny bladders, ellipsoid to oblong egg-shaped; seeds 1 or 2 in each locule, turgid, smooth.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Habitat and Range

Moist fields and open meadows and slopes in the lowland zone; rare in SW BC, known only from Vancouver Island and the Gulf Islands; S to N CA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Marah oreganus (Torr. ex S. Watson) Howell