Flora of North America species comparison

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Marah oregana

coast man-root, coastal manroot, manroot, Oregon big-root, Oregon manroot, western wild-cucumber
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.

Marah oregana
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 (0–2600(–6600) ft)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
Source FNA vol. 6, p. 24.
Parent taxa Cucurbitaceae > Marah
Sibling taxa
M. fabacea, M. gilensis, M. guadalupensis, M. horrida, M. macrocarpa, M. watsonii
Synonyms Sicyos oreganus, Echinocystis oregana, Megarrhiza oregana
Name authority (Torrey & A. Gray) Howell: Fl. N.W. Amer., 239. (1898)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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