Flora of North America species comparison

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Clematis crispa

Clematis morefieldii

blue-jasmine, curly clematis, curly virginsbower, marsh clematis, swamp leather flower

huntsville vasevine, Morefield's clematis, Morefield's leather-flower
Stems

viny, to 3 m, glabrous or sparsely to moderately pilose-pubescent, denser at nodes.

viny, to 5 m, cobwebby-tomentose and pilose.
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.

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

terminal, 1-flowered;

bracts absent.

axillary, 1-5-flowered;

bracts at or near base of peduncle/pedicel.
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.

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 appressed-puberulent;

beak 2-3.5 cm, appressed-puberulent.

bodies silky-pubescent;

beak 3-3.5 cm, plumose.
2n

= 16.

Clematis crispa

Clematis morefieldii
Phenology Flowering spring–summer. Flowering spring–early summer.
Habitat Low woods, bottomlands, swamps Open woods among limestone boulders
Elevation 0-200 m (0-700 ft) 200-300 m (700-1000 ft)
Distribution
from FNA
AL; AR; FL; GA; IL; KY; LA; MO; MS; NC; OK; SC; TN; TX; VA
[WildflowerSearch map]
[BONAP county map]
from FNA
AL
[BONAP county map]
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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 3. FNA vol. 3.
Parent taxa Ranunculaceae > Clematis > subg. Viorna Ranunculaceae > Clematis > subg. Viorna
Sibling taxa
C. addisonii, C. albicoma, C. baldwinii, C. bigelovii, C. catesbyana, C. coactilis, C. columbiana, C. drummondii, C. fremontii, C. glaucophylla, C. hirsutissima, C. lasiantha, C. ligusticifolia, C. morefieldii, C. occidentalis, C. ochroleuca, C. orientalis, C. pauciflora, C. pitcheri, C. recta, C. reticulata, C. socialis, C. tangutica, C. terniflora, C. texensis, C. versicolor, C. viorna, C. virginiana, C. vitalba, C. viticaulis, C. viticella
C. addisonii, C. albicoma, C. baldwinii, C. bigelovii, C. catesbyana, C. coactilis, C. columbiana, C. crispa, C. drummondii, C. fremontii, C. glaucophylla, C. hirsutissima, C. lasiantha, C. ligusticifolia, C. occidentalis, C. ochroleuca, C. orientalis, C. pauciflora, C. pitcheri, C. recta, C. reticulata, C. socialis, C. tangutica, C. terniflora, C. texensis, C. versicolor, C. viorna, C. virginiana, C. vitalba, C. viticaulis, C. viticella
Synonyms Viorna crispa, Viorna obliqua
Name authority Linnaeus: Sp. Pl. 1: 543. (1753) Kral: Ann. Missouri Bot. Gard. 74: 665. (1987)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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