Marah oregana

(Torrey & A. Gray) Howell

Fl. N.W. Amer., 239. 1898.

Common names: Coastal manroot
Endemic
Basionym: Sicyos oreganus Torrey & A. Gray Fl. N. Amer. 1: 542. 1840
Synonyms: Echinocystis oregana (Torrey & A. Gray) Cogniaux Megarrhiza oregana (Torrey & A. Gray) S. Watson
Treatment appears in FNA Volume 6. Treatment on page 24. Mentioned on page 22.

Leaf blades usually shallowly, sometimes deeply 5–7-lobed, 8–20(–35) cm wide. Flowers: sepals (pistillate) deltate to subulate or filiform, 1 mm; petals 8–10 mm (pistillate) or 5–6 mm (staminate), corolla usually white to cream, rarely greenish, cupulate to cupulate-rotate; staminodia present in pistillate flowers. Capsules usually striped dark green at maturity, short-ellipsoid to ovoid, tapered to beak, 4–6.5(–8) cm, surface sparsely to moderately echinate (usually smooth distally), spinules weak, flexible, 3–6 mm. Seeds 3–6, orbiculate to elliptic, compressed, 16–22 mm. 2n = 32.


Phenology: Flowering (Feb–)Mar–Jun.
Habitat: Roadsides, disturbed areas, clearings, fields, dunes, open hillsides, stream sides, meadows, thickets, Douglas fir and redwood forests
Elevation: 0–800(–2000) m

Distribution

V6 33-distribution-map.jpg

B.C., Calif., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Marah oregana"
Guy L. Nesom +
(Torrey & A. Gray) Howell +
Sicyos oreganus +
Coastal manroot +
B.C. +, Calif. +, Oreg. +  and Wash. +
0–800(–2000) m +
Roadsides, disturbed areas, clearings, fields, dunes, open hillsides, stream sides, meadows, thickets, Douglas fir and redwood forests +
Flowering (Feb–)Mar–Jun. +
Fl. N.W. Amer., +
Echinocystis oregana +  and Megarrhiza oregana +
Marah oregana +
species +