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.

"/2" is not declared as a valid unit of measurement for this property.No values specified.

... more about "Marah oregana"
distinct +  and connate +
Guy L. Nesom +
(Torrey & A. Gray) Howell +
Sicyos oreganus +
suborbiculate;shallowly deeply palmately 5(-7)-lobed +
tubular +, saucer--shaped +, campanulate +  and rotate +
6.5 cm65 mm <br />0.065 m <br /> (8 cm80 mm <br />0.08 m <br />) +
green +  and striped dark +
tapered +, short-ellipsoid +  and ovoid +
4 cm40 mm <br />0.04 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
Coastal manroot +
greenish +, usually white +  and cream +
B.C. +, Calif. +, Oreg. +  and Wash. +
0–800(–2000) m +
furrowed +  and echinate +
dehiscent +  and indehiscent +
bristly +, smooth +, hairy +  and glabrous +
tuberculate +  and muricate +
fleshy +  and hard +
thin-walled +  and moderately sparsely or densely echinate +
short-beaked +  and symmetric +
green-striped;yellowish green;orange-yellow +
globose +  and subglobose or depressed-globose short-ellipsoid ovoid or oblong +
Roadsides, disturbed areas, clearings, fields, dunes, open hillsides, stream sides, meadows, thickets, Douglas fir and redwood forests +
perennial +
dioecious +  and monoecious +
umbellate;subumbellate +
solitary +, corymbose +, fasciculate +, racemose +  and paniculate +
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
petiolate +, estipulate +  and simple +
deltate;oblong-ovate or ovate +
remotely +  and entire +
dentate-lobulate +
differentiated +
ovoid;globose +
induplicate-valvate +  and imbricate +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
glandular-villous +
Flowering (Feb–)Mar–Jun. +
Fl. N.W. Amer., +
globose;fusiform +
not arillate +
compressed +, orbiculate +  and elliptic +
deltate;subulate or filiform +
1 cm10 mm <br />0.01 m <br /> (?) +
pliable +  and weak +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
climbing +  and procumbent +
sprawling +  and prostrate +
discoid +  and subglobose +
Echinocystis oregana +  and Megarrhiza oregana +
Marah oregana +
species +
2-3-branched +  and unbranched +
not fused +
plant +  and climbing +
dioecious +  and monoecious +