Diphylleia cymosa

Michaux

Fl. Bor.-Amer. 1: 203. 1803.

Common names: Umbrella-leaf
EndemicIllustrated
Treatment appears in FNA Volume 3.

Leaves of nonflowering shoots 2.5-9 dm. Leaf-blades 13-53 cm diam. Flowering shoots 6-12 dm; leaves alternate, unequal in size; proximal leaf petioles 10-18 cm, blades 17-46 × 23-56 cm; distal leaf petioles 3-15 cm, blades 10-38 × 15-51 cm. Leaf-blade divided at apex and base into 2 parts, each part 5-9-lobed, lobes broadly acuminate, abaxially sparsely pubescent with unicellular hairs. Inflorescences cymose, glabrous; peduncle 0.2-4 cm; pedicel 0.7-3.5 cm; peduncle and pedicel turning red at fruit maturity. Flowers 7-70 (or more); outer sepals 1.7-4.5 × 0.4 mm; inner sepals 2.5-6 × 3.5-4 mm; outer petals narrowly obovate, 9-11 × 4.5-6 mm; inner petals elliptic to obovate, 10-13×6-7 mm; stamens 3-4 mm; filaments 1-2 mm; anthers 2 × 1 mm; ovaries ellipsoid, 3-5 × 1.5-2.5 mm; stigma 0.5-1 mm. Berries 6-13 × 4-11 mm. Seeds 2-4, 4-7 × 2-5 mm, abaxially rounded, adaxially flattened to concave. 2n = 12.


Phenology: Flowering late spring, fruiting summer.
Habitat: Forming dense colonies on moist slopes in mixed deciduous forests, in seepages, or along streams
Elevation: 800-1700 m

Distribution

V3 833-distribution-map.gif

Ga., N.C., S.C., Tenn., Va.

Discussion

Diphylleia cymosa is endemic to the Blue Ridge Mountains of the southern Appalachians. It is occasionally grown in woodland gardens.

Cherokee Indians are reported to have used D. cymosa to treat a variety of ailments and as a disinfectant (D. E. Moerman 1986).

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Diphylleia cymosa"
2 cm20 mm <br />0.02 m <br /> (?) +
1 cm10 mm <br />0.01 m <br /> (?) +
Lisa O'Rourke George +
Michaux +
0.6 cm6 mm <br />0.006 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
5 cm50 mm <br />0.05 m <br /> (47 cm470 mm <br />0.47 m <br />) +
10 cm100 mm <br />0.1 m <br /> (38 cm380 mm <br />0.38 m <br />) +
reniform-orbiculate +  and orbiculate +
15 cm150 mm <br />0.15 m <br /> (51 cm510 mm <br />0.51 m <br />) +
scale-like +
Umbrella-leaf +
Ga. +, N.C. +, S.C. +, Tenn. +  and Va. +
800-1700 m +
small +  and large +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
showy +  and inconspicuous +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
Forming dense colonies on moist slopes in mixed deciduous forests, in seepages, or along streams +
unicellular +
axillary +  and terminal +
elliptic;obovate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
13 cm130 mm <br />0.13 m <br /> (53 cm530 mm <br />0.53 m <br />) +
3 cm30 mm <br />0.03 m <br /> (15 cm150 mm <br />0.15 m <br />) +
2-parted +
unequal +
acuminate +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (?) +
1-carpellate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
basal +  and superior +
ellipsoid +
1.5mm;2.5mm +
5-9-lobed +
0.7 cm7 mm <br />0.007 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (4 cm40 mm <br />0.04 m <br />) +
3-merous +  and 2-merous +
distinct +
Flowering late spring, fruiting summer. +
Fl. Bor.-Amer. +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2 +  and 4 +
adaxially flattened +  and concave +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 m <br /> (?) +
pale green +  and white +
distinct +
Endemic +  and Illustrated +
elongating +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
palmate +  and pinnate +
persistent +
Diphylleia cymosa +
Diphylleia +
species +
deciduous +  and perennial +
pubescent +  and glabrous +