Thalictrum debile

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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:Thalictrum debile Buckley
Common Name:Southern Meadow Rue; Trailing Meadow Rue
Habitat:Limestone and prairie woods.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:THDE5
Plant Notes:Southern Meadow Rue is a native herbaceous perennial in the Buttercup family (Ranunculaceae). It is native to central and northern Alabama, primarily in the Black Belt region and the Tennessee Valley. Southern Meadow Rue occurs in rich hardwood forests and prairie or glade edges in areas with calcareous soils. It is a perennial from a cluster of tuberous-fusiform roots. The stems are reclining to decumbent, branched, and glabrous. Leaves are alternate, petiolate (those near the end of the stem are sessile), 1-3 times ternately compound, and glabrous. The leaflets are ovate to orbicular with 3-7 apical lobes. The unisexual flowers are produced in few-flowered terminal and axillary panicles. The flowers lack petals and the sepals are whitish. The fruit is a sessile beaked achene with 6-8 prominent veins. Southern Meadow Rue is listed as a S2 species in Alabama (typically 6 to 20 occurrences, few remaining individuals, or factors demonstrably making it very vulnerable in the state), and globally as a G2 species (imperiled globally because of rarity). This species is easily overlooked. It is early flowering and soon obscured by other vegetation.—A. Diamond
Taxonomic Notes:**
Status:Native, S2 (State Rank), G2 (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyRANUNCULACEAE - Buttercup/Crowfoot family
Genus Thalictrum
Species Thalictrum debile Buckley - Southern Meadow Rue; Trailing Meadow Rue

Citation

Citation Thalictrum debile Buckley, Amer. J. Sci. Arts 45(1): 175–176. 1843.
Basionym: **
Type: ALABAMA: Wilcox Co.: near Allenton, rich woods, Buckley s.n. (holotype: MO).

** Not applicable or data not available.

Synonyms

No synonyms exist for this species.

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: Cherokee, Colbert, Greene, Jefferson, Lawrence, Madison, Marengo, Montgomery, Morgan, Pickens, Sumter, Wilcox

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: 1944 - 1944

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
SAMF0001538 Marengo 11 Apr 2010 Keener, Brian R.
5762		 SAMF
Thalictrum debile Buckley
UWAL0017282 Lawrence 05 Apr 2014 England, J. Kevin
4770		 UWAL
Thalictrum debile Buckley
UWAL0017909 Sumter 30 Mar 1972 Kral, Robert
45287		 UWAL
Thalictrum debile Buckl.
UWAL0030905 Sumter 27 Mar 1986 Kral, Robert
73144		 UWAL
Thalictrum debile Buckl.
UWAL0053121 Morgan 08 Apr 2021 Thompson, Joey
1299		 UWAL
Thalictrum debile Buckley
AUA_ACC_70506 Marengo 11 Apr 2010 Keener, Brian R.
5762		 AUA
Thalictrum Debile Buckl.
UWAL0016074 Colbert 19 Apr 2014 England, J. Kevin
4805		 UWAL
Thalictrum debile Buckley
UNA00073315 Wilcox s.d. Buckley, S.B.
9		 UNA
Thalictrum debile Buckl.
UWAL0003663 Marengo 11 Apr 2010 Keener, Brian R.
5762		 UWAL
Thalictrum debile Buckl.
ALNHS00002428 Sumter 02 Apr 2013 Barger, T. Wayne
SP#919		 ALNHS
Thalictrum debile Buckl.
AUA_ACC_72009 Pickens 17 Apr 2009 Schotz, Alfred
2127		 AUA
Thalictrum Debile Buckl.
UWAL0017910 Sumter 30 Mar 1972 Kral, Robert
45296		 UWAL
Thalictrum debile Buckl.
TROY000045567 Colbert 19 Apr 2014 England, J. Kevin
4805		 TROY
Thalictrum debile Buckley
UWAL0003665 Sumter 19 Mar 2007 Keener, Brian R.
3423		 UWAL
Thalictrum debile Buckl.
TROY000046187 Marengo 11 Apr 2010 Keener, Brian R.
5762		 TROY
Thalictrum debile Buckley
UWAL0049708 Colbert 06 Apr 1985 Webb, David H.
5083		 UWAL
Thalictrum debile Buckl.
TROY000022960 Pickens 07 Apr 2008 Keener, Brian R.
4188		 TROY
Thalictrum debile Buckley
AUA_ACC_72204 Marengo 13 Mar 2011 England, J. Kevin
2663		 AUA
Thalictrum Debile Buckl.
UNA00073765 Colbert 19 Apr 2014 England, J. Kevin
4805		 UNA
Thalictrum debile Buckl.
TROY000051072 Pickens 26 Mar 2015 Keener, Brian R.
8686		 TROY
Thalictrum debile Buckley
UWAL0003664 Pickens 07 Apr 2008 Keener, Brian R.
4188		 UWAL
Thalictrum debile Buckl.
UWAL0033806 Madison 19 Apr 2016 Finzel, Brian
s.n.		 UWAL
Thalictrum debile Buckley
UWAL0008638 Marengo 13 Mar 2011 England, J. Kevin
2663		 UWAL
Thalictrum debile Buckley
NY00353567 Wilcox April 1840 Samuel B. Buckley
s.n.		 NY
Thalictrum debile Buckley
SAMF0001907 Jefferson 08 Mar 2013 Davenport, Lawrence J.
5419		 SAMF
Thalictrum debile Buckley
UNA00030040 Madison 06 Apr 1944 Harper, Roland M.
3959		 UNA
Thalictrum debile Buckl.
UWAL0053120 Morgan 08 Apr 2021 Thompson, Joey
1300		 UWAL
Thalictrum debile Buckley
AUA_ACC_71811 Pickens 7 Apr 2008 Keener, Brian R.
4188		 AUA
Thalictrum Debile Buckl.
UWAL0034538 Lawrence 13 Apr 1981 Kral, Robert
66882		 UWAL
Thalictrum debile Buckl.
UNA00072903 Jefferson 08 Mar 2013 Davenport, Lawrence J.
5419		 UNA
Thalictrum debile Buckl.
UNA00070123 Pickens 17 Apr 2009 Schotz, Alfred
2127		 UNA
Thalictrum debile Buckl.
UWAL0031217 Pickens 26 Mar 2015 Keener, Brian R.
8686		 UWAL
Thalictrum debile Buckl.
UWAL0053076 Cherokee 18 Mar 2020 Thompson, Joey
1106		 UWAL
Thalictrum debile Buckley
AUA_ACC_25980 Lawrence 10 Apr 1969 Kral, Robert
34151		 AUA
Thalictrum Debile Buckl.
UNA00073765 Colbert 19 Apr 2014 England, J. Kevin
4805		 UNA
Thalictrum debile Buckl.
TROY000039717 Marengo 13 Mar 2011 England, J. Kevin
2663		 TROY
Thalictrum debile Buckley
UWAL0054386 Greene 07 Apr 2021 Keener, Brian R.
12144		 UWAL
Thalictrum debile Buckley
UWAL0016905 Jefferson 08 Mar 2013 Davenport, L.J.
5419		 UWAL
Thalictrum debile Buckley
TROY000050646 Lawrence 05 Apr 2014 England, J. Kevin
4770		 TROY
Thalictrum debile Buckley
UWAL0047125 Colbert 28 Mar 2013 Schotz, Alfred
2183		 UWAL
Thalictrum debile Buckley
UNA00068798 Pickens 07 Apr 2008 Keener, Brian R.
4188		 UNA
Thalictrum debile Buckl.
UNA00066991 Sumter 19 Mar 2007 Keener, Brian R.
3423		 UNA
Thalictrum debile Buckl.
SAMF0001539 Marengo 13 Mar 2011 England, J. Kevin
2663		 SAMF
Thalictrum debile Buckley
TROY000052073 Montgomery 17 Mar 2021 Birkhead, Roger
s.n.		 TROY
Thalictrum debile Buckley
AUA000041220 Colbert 28 Mar 2013 Schotz, Alfred
2183		 AUA
Thalictrum Debile Buckl.
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