Clematis flaccida

Family:RANUNCULACEAE
Species:Clematis flaccida Small
Common Name:Weak Stemed Leather Flower; Vase Vine
Habitat:Alkaline soils, usually around limestone areas.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:Weak Stemmed Leather Flower is a native herbaceous perennial vine in the Buttercup family (Ranunculaceae). It is native to central and northern Alabama. Weak Stemmed Leather Flower occurs along streams and rivers, in prairie edges, in thin woods, along woodland edges, and on roadsides. It is a vine climbing by twining. The vines are up to 8 feet in length and are angled, pubescent, and reddish-brown or green in color. The leaves are opposite and pinnately compound with 2-4 leaflets. The leaflets are elliptic to ovate-lanceolate in outline, entire or 1-2 lobed, and pubescent on the lower surface. The leaves are thin, not conspicuously reticulate, and not glaucous. Flowers are solitary from the axils of the leaves. The flowers are bell-shaped, pubescent, and with 4 thick, pubescent, pale purplish sepals with white recurved tips. The inside of the flower is white. The long petioles have a pair of conspicuous ovate bracts slightly below the middle. The fruit is a head of achenes. The achenes are appressed pubescent with long, pubescent, twisted beaks.—A. Diamond
Taxonomic Notes:There has been much taxonomic confusion about the VIORNA group within Clematis which has impacted the recognition of several species including C. flaccida Small. Clematis flaccida (and others) has long been and wrongly identified as C. viorna L., and some authors have subsumed it synonymy under Clematis viorna. However, C. flaccida is distinct from C. viorna based on a suite of characters including flower color, leaflet divisions, etc. It appears as that true Clematis viorna, is a southern Appalachian species but does not reach Alabama (Estes pers. comm.) Specimens below identified as C. viorna should be reexamined but more than likely all are C. flaccida or some other Clematis species--B. Keener
Status:Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyRANUNCULACEAE - Buttercup/Crowfoot family
Genus Clematis
Species Clematis flaccida Small - Weak Stemed Leather Flower; Vase Vine

Citation

Citation Clematis flaccida Small, Man. Fl. N. States 421. 1901.
Basionym: **
Type: KENTUCKY. Warren Co.: Cave entrance, May 1899. (Holotype: NY).

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Clematis viorna    
Viorna flaccida    
Viorna viorna    

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Bibb, Calhoun, Chilton, Clarke, Clay, Cleburne, Coosa, Etowah, Franklin, Greene, Lawrence, Lowndes, Madison, Marshall, Pickens, St. Clair, Talladega, Tuscaloosa

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AUA, JSU, SAMF, TROY, UNA, UWAL

Range of years during which specimens were collected: 1874 - 1980

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
TROY000045623 Autauga 11 May 2017 Parker, Matthew R.
782
TROY
Clematis viorna Linnaeus
UWAL0044753 Lawrence 12 Jun 2019 England, J. Kevin
10336
UWAL
Clematis flaccida Small
AUA000037158 St. Clair 19 Jun 2018 THIBAULT, TIM
1685
AUA
CLEMATIS VIORNA L.
UWAL0017970 Clarke 10 Jun 1996 Kral, R.
86060
UWAL
Clematis viorna L.
JSU128116 Etowah 26 Jun 1994 Hodge, Lesley M.
2748
JSU
Clematis viorna Linnaeus
UWAL0037077 Lawrence 14 May 2016 England, J. Kevin
6327
UWAL
Clematis flaccida Small
UNA00057728 Bibb 29 May 1994 Allison, James R.
8345
UNA
Clematis viorna L.
JSU128115 Cleburne 17 May 1985 Whetstone, R. David
15022
JSU
Clematis viorna Linnaeus
JSU128113 Calhoun 20 Jul 1982 Whetstone, R. David
11489
JSU
Clematis viorna Linnaeus
TROY000049836 Lowndes 12 Jun 2020 Diamond, Alvin R.
29318
TROY
Clematis flaccida Small
JSU128118 Madison 10 Jun 1976 Whetstone, R. David
8394
JSU
Clematis viorna Linnaeus
AUA000037804 Marshall 27 May 2018 SCHOTTS, GAVIN
AUA
CLEMATIS VIORNA L.
AUA_ACC055980 Clarke 31 MAY 1972 KRAL, ROBERT
47036
AUA
CLEMATIS VIORNA L.
JSU128117 Madison 10 Jun 1975 Atkinson, Tim A.
1786
JSU
Clematis viorna Linnaeus
UNA00030333 Chilton 29 Jun 1980 McDaniel, Sidney
24010
UNA
Clematis viorna L.
JSU128119 Talladega 23 May 1982 Bussey, Melanie G.
s.n.
JSU
Clematis viorna Linnaeus
UNA00013773 Franklin 08 Jun 1892 Mohr, Charles
s.n.
UNA
Clematis viorna L.
SAMF0003225 Clarke 10 Jun 1996 Kral, Robert
86060
SAMF
Clematis viorna Linnaeus
UWAL0052252 Pickens 23 Jun 2017 Keener, Brian R.
10237
UWAL
Clematis flaccida Small
UWAL0005425 Chilton 20 May 1973 Kral, R.
50241
UWAL
Clematis viorna L.
UWAL0046810 Autauga 11 May 2017 Parker, Matthew R.
782
UWAL
Clematis viorna Linnaeus
SAMF0006742 Clay 01 Jun 2017 Davenport, Lawrence J.
6568
SAMF
Clematis viorna Linnaeus
UWAL0049925 Lowndes 12 Jun 2020 Diamond, Alvin R.
29318
UWAL
Clematis flaccida Small
UWAL0032536 Lawrence 14 May 2016 England, J. Kevin
6327
UWAL
Clematis viorna Linnaeus
JSU128114 Calhoun 20 Jul 1986 Lawler, Carol L.
774
JSU
Clematis viorna Linnaeus
UNA00058862 Coosa 10 May 1999 Kral, Robert
88263
UNA
Clematis viorna L.
UWAL0031297 Bibb 30 May 2015 Keener, Brian R.
8917
UWAL
Clematis viorna L.
UNA00013774 Franklin 08 Jun 1892 Mohr, Charles
s.n.
UNA
Clematis viorna L.
UWAL0050248 Madison 06 Jun 2020 Finzel, Brian
s.n.
UWAL
Clematis flaccida Small
UNA00030348 Tuscaloosa 21 May 1976 Raycraft, Terry
s.n.
UNA
Clematis viorna L.
UWAL0047654 Greene 22 May 2013 Barger, T. Wayne
SP#3318
UWAL
Clematis flaccida D. Estes
JSU128112 Calhoun 7 Jun 1987 Lawler, Carol L.
1602
JSU
Clematis viorna Linnaeus
AUA_ACC055926 Chilton 20 MAY 1973 KRAL, ROBERT
50241
AUA
CLEMATIS VIORNA L.
UNA00013775 Autauga 14 Jul 1874 Smith, Eugene A.
s.n.
UNA
Clematis viorna L.
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