Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Ranunculales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Thalictrum clavatum
FAMILY
Ranunculaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Mountain Meadow-rue from the Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Thalictrum clavatum
FAMILY
Ranunculaceae
SYNONYMOUS WITH Flora of North America
Thalictrum clavatum
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 076-11-002:
Thalictrum clavatum FAMILY Ranunculaceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Thalictrum clavatum
COMMON NAME:
Mountain Meadowrue, Lady-rue
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_thcl_001_lvd
)
JK Marlow jkm230322_1973
March Oconee County SC
Sumter National Forest: Andrew Pickens Ranger District
)
Alan S. Weakley asw_245439511232281
April SC
Jocassee Gorges
)
Alan S. Weakley asw_587343483362066
April SC
Jocassee Gorges
The southern mountains' only Thalictrum w perfect [bisexual] flowers, per Wildflowers of the Southern Mountains (Smith, 1998).
)
Alan S. Weakley asw_964134978265160
April SC
Jocassee Gorges
)
JK Marlow jkm0504t_25
April Pickens County SC
Table Rock State Park
COMPARE
leaves that resemble Thalictrum
)
JK Marlow jkm120506_430
May Rabun County GA
Chattahoochee National Forest
)
JK Marlow jkm120506_538
May Rabun County GA
Chattahoochee National Forest
Filaments of stamens are white & dilated, suggesting club-shaped petals, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm120517_910
May Yancey County NC
Blue Ridge Parkway
)
JK Marlow jkm140517_836
May Transylvania County NC
)
JK Marlow jkm140517_838b
May Transylvania County NC
Filaments spreading in all directions(unlike T. dioicum's strongly drooping filiform filaments), per Vascular Plants of North Carolina.
)
JK Marlow jkm140627_496
June Transylvania County NC
Foothills Trail
)
JK Marlow jkm140627_499
June Transylvania County NC
Foothills Trail
Achene scimitar-shaped. Inflorescence branches stiff and diverge at acute angles, per Weakley's Flora (2023).
COMPARE
fruits that are an aggregate of achenes
)
JK Marlow jkm220605_8260
June Greenville County SC
Chandler Heritage Preserve
)
JK Marlow jkm230609_3901
June Jackson County NC
Whiteside Mountain
Leaflets kidney-shaped or oval, broader toward tip, 4-7 lobed, 1-1.5" wide, per Wildflowers in the Field and Forest: Northeastern US (Clemants & Gracie, 2006).
)
JK Marlow jkm180821_3928
August Jackson County NC
Whiteside Mountain
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Thalictrum clavatum
FAMILY
Ranunculaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Thalictrum clavatum
FAMILY
Ranunculaceae
SYNONYMOUS WITH
Flora of North America
Thalictrum clavatum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 076-11-002:
Thalictrum clavatum
FAMILY
Ranunculaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Thalictrum clavatum
1495
Forb
Perennial
Habitat: seepages, moist forests, spray cliffs at waterfalls, brookbanks, per Weakley's Flora
Native to the Carolinas & Georgia
Common in Mountains (rare in Piedmont)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Ternately compound, with 2+ levels of compoundness
Basal & mostly alternate
FLOWER:
Spring/Summer
White (filaments)
Radially symmetrical
4 sepals
Petals absent
Numerous petaloid stamens
Superior ovary
Bisexual
Inflorescence paniculate
FRUIT:
Spring/Summer
Aggregate of achenes
TO LEARN MORE about this plant, look it up in a good book!
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p100
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p215
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p015
- Wildflowers in the Field and Forest: Northeastern US (Clemants & Gracie, 2006) p306
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p306
- Wildflowers of Tennessee (Carman, 2005) p043
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p064
- Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont (Spira, 2011) p450
- Wildflowers of the Southern Mountains (Smith, 1998) p051
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