Thalictrum macrostylum
Small & Heller
Small-leaf Meadowrue
G3VulnerableGlobal Rank
ThePrairiePreacher, CC BY-NC 4.0
ThePrairiePreacher, CC BY-NC 4.0
ThePrairiePreacher, CC BY-NC 4.0
John Kees, CC0 1.0
Identity
Unique IDELEMENT_GLOBAL.2.161174
Element CodePDRAN0M0B0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRanunculales
FamilyRanunculaceae
GenusThalictrum
Other Common Names
Piedmont Meadowrue (EN) piedmont meadowrue (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
Kartesz' 1994 and 1999 checklists include T. subrotundum within this, following Park (1992) and Park and Festerling (1997), who concluded that the two taxa are not distinct. However, several Heritage programs treat T. subrotundum as distinct from T. macrostylum. KPM 10/96 rev. L. Morse 9/99.
Conservation Status
Review Date2002-10-28
Change Date1996-10-08
Edition Date1998-04-01
Edition AuthorsD. Gries, rev. A. Olivero (2002)
Rank Reasons
Moderately widespread in the southeastern United States from southeastern Virginia to the Florida panhandle west to Mississippi (Wunderlin 1998, Weakley 2000). Apparently rare across its range (Wunderlin 1998, Kartesz 1999, Weakley 2000).
Range Extent Comments
A Southeastern species, ranging from southeastern Virginia south to the Florida panhandle and west to Mississippi (Weakley 1996, Wunderlin 1998). Occurs in three counties in Georgia (Jones, 1988) and six counties in Virginia (Harvill 1986).
Threat Impact Comments
Highly threatened by land-use conversion, habitat fragmentation, succession, and forest management practices (harvest, site prep, Rx fire) (Southern Appalachian Species Viability Project 2002). Alterations to hydrology are also a concern (ALHP et al. 1997).
Ecology & Habitat
Habitat
Rich woods and low meadows (Radford, 1968). Swampy woodlands, slopes, cliffs, limestone sinks (Godfrey, 1981).
Other Nations (1)
United StatesN3
| Province | Rank | Native |
|---|---|---|
| South Carolina | S1 | Yes |
| Alabama | S1 | Yes |
| Georgia | S3 | Yes |
| Mississippi | S1 | Yes |
| Virginia | S1 | Yes |
| North Carolina | S3 | Yes |
Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (2)
North Carolina (2)
| Area | Forest | Acres |
|---|---|---|
| Boteler Peak | Nantahala National Forest | 4,205 |
| Tusquitee Bald | Nantahala National Forest | 13,670 |
References (12)
- Alabama Natural Heritage Program. 1994. Tri-state comprehensive study: Thalictrum subrotundum.
- Alabama Natural Heritage Program, Florida Natural Areas Inventory, Georgia Natural Heritage Program, and U.S. Fish and Wildlife Service Panama City, Florida, Field Office. 1997. Appendix D: Species abstracts for plants, in Protected species inventory and identification in the Alabama-Coosa-Tallapoosa and Apalachicola-Chattahoochee-Flint river basins.
- Flora of North America Editorial Committee (FNA). 1997. Flora of North America north of Mexico. Vol. 3. Magnoliophyta: Magnoliidae and Hamamelidae. Oxford Univ. Press, New York. xxiii + 590 pp.
- Godfrey, R.K., and J.W. Wooten. 1981. Aquatic and wetland plants of southeastern United States: Dicotyledons. Univ. Georgia Press, Athens. 933 pp.
- Harvill, A.M., Jr., T.R. Bradley, C.E. Stevens, T.F. Wieboldt, D.M.E. Ware, and D.W. Ogle. 1986. Atlas of the Virginia flora. Second edition. Virginia Botanical Associates, Farmville. 135 pp.
- Jones, S.B., Jr., and N.C. Coile. 1988. The distribution of the vascular flora of Georgia. Dept. Botany, Univ. Georgia, Athens. 230 pp.
- Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
- Radford, A.E., H.E. Ahles, and C.R. Bell. 1968. Manual of the vascular flora of the Carolinas. Univ. North Carolina Press, Chapel Hill, NC. 1183 pp.
- Southern Appalachian Species Viability Project. 2002. A partnership between the U.S. Forest Service-Region 8, Natural Heritage Programs in the Southeast, NatureServe, and independent scientists to develop and review data on 1300+ regionally and locally rare species in the Southern Appalachian and Alabama region. Database (Access 97) provided to the U.S. Forest Service by NatureServe, Durham, North Carolina.
- Weakley, A.S. 1996. Flora of the Carolinas and Virginia: working draft of 23 May 1996. The Nature Conservancy, Southeast Regional Office, Southern Conservation Science Dept., Chapel Hill, North Carolina. Unpaginated.
- Weakley, A.S. 2000. Flora of the Carolinas and Virginia: working draft of May 15, 2000. Unpublished draft, The Nature Conservancy, Southern Resource Office.
- Wunderlin, R.P. 1998. Guide to the Vascular Plants of Florida. University Press of Florida: Gainesville, Florida. 806 pp.