Clematis crispa

Linnaeus

Sp. Pl. 1: 543. 1753.

Common names: Marsh clematis curly clematis blue-jasmine
EndemicIllustrated
Synonyms: Viorna crispa (Linnaeus) Small Viorna obliqua Small
Treatment appears in FNA Volume 3.

Stems viny, to 3 m, glabrous or sparsely to moderately pilose-pubescent, denser at nodes. Leaf-blade 1-2-pinnate or rarely a few simple or 3-foliolate; leaflets 4-10 plus additional ± tendril-like terminal leaflet, usually lanceolate to ovate, occasionally linear, unlobed or proximally 3-5-lobed, (1.5-) 3-10 × (0.1-) 0.4-4 (-5) cm, thin, not conspicuously reticulate; surfaces glabrous, not glaucous. Inflorescences terminal, 1-flowered; bracts absent. Flowers bell-shaped; sepals distally strongly spreading to recurved, violet-blue, lanceolate, 2.5-5 cm, margins proximally thick and tomentose, distally broadly expanded, 2-6 mm wide, thin, crispate, less conspicuously tomentose than proximal portion, or glabrate, tips acuminate, abaxially glabrous. Achenes: bodies appressed-puberulent; beak 2-3.5 cm, appressed-puberulent. 2n = 16.


Phenology: Flowering spring–summer.
Habitat: Low woods, bottomlands, swamps
Elevation: 0-200 m

Distribution

V3 221-distribution-map.gif

Ala., Ark., Fla., Ga., Ill., Ky., La., Miss., Mo., N.C., Okla., S.C., Tenn., Tex., Va.

Discussion

Clematis crispa is highly variable in leaflet width, and conspicuous variation may occur on a single plant (R.O. Erickson 1943); no discontinuity or geographic correlation exists that would permit the recognition of varieties. The dilated, petaloid sepal tips and thin, crispate, broadly expanded sepal margins are diagnostic for this species.

Selected References

None.

Lower Taxa

None.

No values specified."thick" is not a number.

... more about "Clematis crispa"
flattened +
James S. Pringle +
Linnaeus +
cuneate +, truncate +  and cordate +
Undefined subg. Viorna +
curved +  and straight +
variable +
appressed-puberulent +
plumose +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
appressed-puberulent +
scale-like;leaflike +
globose;cylindric +
Marsh clematis +, curly clematis +  and blue-jasmine +
bracteate +  and 3-7-flowered +
paired +  and solitary +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Ky. +, La. +, Miss. +, Mo. +, N.C. +, Okla. +, S.C. +, Tenn. +, Tex. +  and Va. +
0-200 m +
filiform +  and flattened +
bracteate +  and 3-7-flowered +
paired +  and solitary +
showy +  and inconspicuous +
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 +
Low woods, bottomlands, swamps +
axillary +  and terminal +
3-foliolate +, simple +  and few +
rarely +  and 1-2-pinnate +
cordate +  and orbiculate oblong lanceolate or oblanceolate lobed or unlobed +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
usually lanceolate +  and ovate occasionally linear unlobed or proximally 3-5-lobed +
palmate +  and pinnate +
glabrate +, less conspicuously tomentose +  and tomentose +
crispate +
expanded +
thin;2mm;6mm +
1-many-flowered +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
distinct +
conspicuous +
reduced +
Flowering spring–summer. +
5 +  and 150 +
not arillate +  and stalked +
violet-blue +
not persistent +
distinct +
distally strongly spreading +  and recurved +
abaxially glabrous +  and silky hirsute or tomentose +
3 +  and 6 +
lanceolate +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Endemic +  and Illustrated +
0 cm0 mm <br />0 m <br /> (300 cm3,000 mm <br />3 m <br />) +
persistent +
not glaucous;glabrous +
Viorna crispa +  and Viorna obliqua +
Clematis crispa +
Clematis subg. Viorna +
species +
acuminate +
annual +  and perennial +