Clematis flaccida

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
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. a result of some authors treating C. flaccida subsumed in 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 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: USA: 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, Morgan, Pickens, St. Clair, Talladega, Tuscaloosa

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: 1874 - 2020

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
SAMF0006742 Clay 01 Jun 2017 Davenport, Lawrence J.
6568		 SAMF
Clematis viorna Linnaeus
UWAL0056195 Morgan 04 Jun 2020 England, Kevin J.
11057		 UWAL
Clematis flaccida Small
JSU128114 Calhoun 20 Jul 1986 Lawler, Carol L.
774		 JSU
Clematis viorna Linnaeus
JSU128117 Madison 10 Jun 1975 Atkinson, Tim A.
1786		 JSU
Clematis viorna Linnaeus
UWAL0052252 Pickens 23 Jun 2017 Keener, Brian R.
10237		 UWAL
Clematis flaccida Small
ALNHS00005146 Greene 22 MAY 2013 Barger, T. Wayne
SP#3318		 ALNHS
Clematis flaccida Small
UWAL0050248 Madison 06 Jun 2020 Finzel, Brian
s.n.		 UWAL
Clematis flaccida Small
SAMF0003225 Clarke 10 Jun 1996 Kral, Robert
86060		 SAMF
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
UNA00013774 Franklin 08 Jun 1892 Mohr, Charles
s.n.		 UNA
Clematis viorna L.
UNA00030333 Chilton 29 Jun 1980 McDaniel, Sidney
24010		 UNA
Clematis viorna L.
AUA_ACC_55926 Chilton 20 May 1973 Kral, Robert
50241		 AUA
Clematis Viorna L.
UNA00057728 Bibb 29 May 1994 Allison, James R.
8345		 UNA
Clematis viorna L.
UWAL0032536 Lawrence 14 May 2016 England, J. Kevin
6327		 UWAL
Clematis viorna Linnaeus
UNA00058862 Coosa 10 May 1999 Kral, Robert
88263		 UNA
Clematis viorna L.
JSU128119 Talladega 23 May 1982 Bussey, Melanie G.
s.n.		 JSU
Clematis viorna Linnaeus
JSU128118 Madison 10 Jun 1976 Whetstone, R. David
8394		 JSU
Clematis viorna Linnaeus
UWAL0037077 Lawrence 14 May 2016 England, J. Kevin
6327		 UWAL
Clematis flaccida Small
JSU128116 Etowah 26 Jun 1994 Hodge, Lesley M.
2748		 JSU
Clematis viorna Linnaeus
UNA00030348 Tuscaloosa 21 May 1976 Raycraft, Terry
s.n.		 UNA
Clematis viorna L.
UWAL0044753 Lawrence 12 Jun 2019 England, J. Kevin
10336		 UWAL
Clematis flaccida Small
UWAL0017970 Clarke 10 Jun 1996 Kral, Robert
86060		 UWAL
Clematis viorna L.
UWAL0005425 Chilton 20 May 1973 Kral, Robert
50241		 UWAL
Clematis viorna L.
UWAL0054028 Lawrence 09 Jun 2020 England, J. Kevin
11086		 UWAL
Clematis flaccida Small
UWAL0046810 Autauga 11 May 2017 Parker, Matthew R.
782		 UWAL
Clematis viorna Linnaeus
AUA000037158 St. Clair 19 Jun 2018 Thibault, Tim
1685		 AUA
Clematis Viorna L.
AUA000037804 Marshall 27 May 2018 Schotts, Gavin
 AUA
Clematis Viorna L.
UWAL0054027 Lawrence 09 Jun 2020 England, J. Kevin
11086		 UWAL
Clematis flaccida Small
ALNHS00001642 Clarke 22 May 2012 Horne, Howard E.
SWS-148		 ALNHS
Clematis viorna L.
AUA_ACC_55980 Clarke 31 May 1972 Kral, Robert
47036		 AUA
Clematis Viorna L.
JSU128115 Cleburne 17 May 1985 Whetstone, R. David
15022		 JSU
Clematis viorna Linnaeus
UWAL0047654 Greene 22 May 2013 Barger, T. Wayne
SP#3318		 UWAL
Clematis flaccida Small
UNA00013773 Franklin 08 Jun 1892 Mohr, Charles
s.n.		 UNA
Clematis viorna L.
UWAL0049925 Lowndes 12 Jun 2020 Diamond, Alvin R.
29318		 UWAL
Clematis flaccida Small
TROY000045623 Autauga 11 May 2017 Parker, Matthew R.
782		 TROY
Clematis viorna Linnaeus
JSU128112 Calhoun 7 Jun 1987 Lawler, Carol L.
1602		 JSU
Clematis viorna Linnaeus
AUA000040412 Madison 25 Jul 2018 Swick, E.N.
1060		 AUA
Clematis Viorna L.
UNA00013775 Autauga 14 Jul 1874 Smith, Eugene A.
s.n.		 UNA
Clematis viorna L.
UWAL0031297 Bibb 30 May 2015 Keener, Brian R.
8917		 UWAL
Clematis viorna L.
ALNHS00005147 Greene 22 MAY 2013 Barger, T. Wayne
SP#3318		 ALNHS
Clematis flaccida Small
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