Clematis morefieldii

Kral

Ann. Missouri Bot. Gard. 74: 665. 1987.

Common names: Morefield's clematis Morefield's leather-flower
Conservation concernEndemicIllustrated
Treatment appears in FNA Volume 3.

Stems viny, to 5 m, cobwebby-tomentose and pilose. Leaf-blade 1-pinnate; leaflets 4-10 plus additional tendril-like terminal leaflet, narrowly to broadly ovate, unlobed or 2-3-lobed, 3.5-10 × 2-6.5 cm, thin, reticulate; surfaces abaxially densely silky-pilose, not glaucous. Inflorescences axillary, 1-5-flowered; bracts at or near base of peduncle/pedicel. Flowers urn-shaped; sepals pinkish, suffused with green, oblong-lanceolate, 2-2.5 cm, margins not expanded, thick, not crispate, tomentose, tips acuminate, slightly spreading to short-reflexed, abaxially densely silky-pubescent. Achenes: bodies silky-pubescent; beak 3-3.5 cm, plumose.


Phenology: Flowering spring–early summer.
Habitat: Open woods among limestone boulders
Elevation: 200-300 m

Discussion

Of conservation concern.

Clematis morefieldii is known only from limestone uplands east of Huntsville, Madison County, Alabama.

From all variants of the closely related Clematis viorna, C. morefieldii differs in the cobwebby tomentose as well as villous pubescence of its stems, and in having bracts at or very near the base of the peduncle rather than well above the base.

Selected References

None.

Lower Taxa

None.

"silky-pubescent" is not a number.No values specified."connivent" is not a number."thick" is not a number.

... more about "Clematis morefieldii"
flattened +
James S. Pringle +
cuneate +, truncate +  and cordate +
Undefined subg. Viorna +
curved +  and straight +
plumose +
3 cm30 mm <br />0.03 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
scale-like;leaflike +
globose;cylindric +
Morefield's clematis +  and Morefield's leather-flower +
bracteate +  and 3-7-flowered +
paired +  and solitary +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
200-300 m +
filiform +  and flattened +
bracteate +  and 3-7-flowered +
paired +  and solitary +
showy +  and inconspicuous +
urn--shaped +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
sessile +  and aggregate +
flattened-ellipsoid;terete;flattened-ellipsoid;terete;lenticular +
Open woods among limestone boulders +
cordate +  and orbiculate oblong lanceolate or oblanceolate lobed or unlobed +
3.5 cm35 mm <br />0.035 m <br /> (10 cm100 mm <br />0.1 m <br />) +
2-3-lobed +, unlobed +  and ovate +
palmate +  and pinnate +
not crispate +
not expanded +
1-many-flowered +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
distinct +
conspicuous +
spurred +, funnel--shaped +, cup-shaped +  and plane +
reduced +
Flowering spring–early summer. +
5 +  and 150 +
Ann. Missouri Bot. Gard. +
not arillate +  and stalked +
suffused with green;pinkish +
not persistent +
distinct +
abaxially glabrous +  and silky hirsute or tomentose +
3 +  and 6 +
oblong-lanceolate +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Conservation concern +, Endemic +  and Illustrated +
pilose +  and cobwebby-tomentose +
0 cm0 mm <br />0 m <br /> (500 cm5,000 mm <br />5 m <br />) +
persistent +
not glaucous;silky-pilose +
Clematis morefieldii +
Clematis subg. Viorna +
species +
slightly spreading +  and short-reflexed +
silky-pubescent +
acuminate +
annual +  and perennial +