Manihot davisiae

Croizat

J. Arnold Arbor. 23: 224. 1942.

Common names: Arizona manihot pata de gallo
Treatment appears in FNA Volume 12. Treatment on page 194. Mentioned on page 193.

Herbs or subshrubs, 1–3 m. Roots thickened. Stems erect, terete when young; nodes not swollen; leaf and stipule-scars not elevated. Leaves: stipules lanceolate, entire; petiole 2–9 cm; blade basally attached, 5–7-lobed, lobes with rounded secondary lobes distal to middle or with 2 pairs of rounded secondary lobes of nearly equal width proximal and distal to middle, median lobe 4–11 cm, margins neither thickened nor revolute, entire, apex acuminate, surfaces glabrous, abaxial smooth. Inflorescences axillary, racemes, to 8 cm. Pedicels: staminate 4–9 mm; pistillate to 15 mm in fruit, downcurved. Staminate flowers: calyx campanulate, 7–15 mm, lobes erect or spreading; stamens 10. Capsules 1.5 cm, nearly smooth, not winged. Seeds globose, 12 mm.


Phenology: Flowering Jul–Oct.
Habitat: Desert scrub, thorn scrub, oak woodlands, oak grasslands.
Elevation: 100–2000 m.

Distribution

Ariz., Mexico (Chihuahua), Mexico (Sinaloa), Mexico (Sonora)

Discussion

In the flora area, Manihot davisiae is limited to Pima and Santa Cruz counties.

Selected References

None.

Lower Taxa

None.
... more about "Manihot davisiae"
W. John Hayden +
Croizat +
5-7-lobed +
campanulate +
0.7 cm7 mm <br />0.007 m <br /> (?) +  and 1.5 cm15 mm <br />0.015 m <br /> (?) +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Arizona manihot +  and pata de gallo +
Ariz. +, Mexico (Chihuahua) +, Mexico (Sinaloa) +  and Mexico (Sonora) +
100–2000 m. +
subtending +
Desert scrub, thorn scrub, oak woodlands, oak grasslands. +
deciduous +  and persistent +
not elevated +
spreading +  and erect +
distal;middle +
lobed;undivided +
palmate +  and pinnate +
serrate +, repand +  and entire +
4 cm40 mm <br />0.04 m <br /> (11 cm110 mm <br />0.11 m <br />) +
intrastaminal +
not swollen +
pistillate +  and staminate +
elongating +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
connate;distinct +
2 cm20 mm <br />0.02 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Flowering Jul–Oct. +
J. Arnold Arbor. +
0 cm0 mm <br />0 m <br /> (8 cm80 mm <br />0.08 m <br />) +
globose +
distinct +  and connate +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
papillate +
flabellate +
Manihot davisiae +
species +
subshrub +  and herb +
dioecious +  and monoecious +