Marah gilensis

(Greene) Greene

Leafl. Bot. Observ. Crit. 2: 36. 1910.

Common names: Gila manroot
Basionym: Megarrhiza gilensis Greene Bull. Torrey Bot. Club 8: 97. 1881
Treatment appears in FNA Volume 6. Treatment on page 23. Mentioned on page 22.
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Leaf-blades deeply 5–7-lobed, 4–10 cm wide, surfaces not glaucous. Flowers: sepals (pistillate) vestigial; petals 3–4 mm (pistillate) or 3–3.5 mm (staminate), corolla white, rotate; staminodia present but very inconspicuous in pistillate flowers. Capsules yellowish green, globose to subglobose or short-ellipsoid, 2.5–3 cm, surface densely echinate, spinules rigid, 2–3 (–5) mm. Seeds 2–4, ovate to suborbiculate, slightly compressed, 10–12 mm. 2n = 30.


Phenology: Flowering (Dec–)Feb–Apr.
Habitat: Desert flats and washes, stream beds, canyon bottoms and slopes, desert scrub, chaparral, oak, riparian zones
Elevation: (500–)600–1500 m

Distribution

V6 30-distribution-map.jpg

Ariz., N.Mex., Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

No values specified.

... more about "Marah gilensis"
distinct +  and connate +
Guy L. Nesom +
(Greene) Greene +
Megarrhiza gilensis +
suborbiculate;shallowly deeply palmately 5(-7)-lobed +
tubular +, saucer--shaped +, campanulate +  and rotate +
yellowish green +
globose +  and subglobose or short-ellipsoid +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Gila manroot +
Ariz. +, N.Mex. +  and Mexico (Sonora) +
(500–)600–1500 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 +
Desert flats and washes, stream beds, canyon bottoms and slopes, desert scrub, chaparral, oak, riparian zones +
perennial +
dioecious +  and monoecious +
campanulate;cupulate +
umbellate;subumbellate +
solitary +, corymbose +, fasciculate +, racemose +  and paniculate +
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 />) +
greenish;greenish yellow;cream-yellow;greenish yellow;cream-yellow;white +
glandular-villous +
triangular;ovate or oblong-ovate +
Flowering (Dec–)Feb–Apr. +
Leafl. Bot. Observ. Crit. +
globose;fusiform +
not arillate +
compressed +, ovate +  and suborbiculate +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
filiform;subulate or deltate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
climbing +  and procumbent +
sprawling +  and prostrate +
discoid +  and subglobose +
not glaucous +
Marah gilensis +
species +
2-3-branched +  and unbranched +
not fused +
plant +  and climbing +
dioecious +  and monoecious +