Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Ranunculales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Thalictrum dioicum
FAMILY
Ranunculaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Early Meadow-rue from the Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Thalictrum dioicum
FAMILY
Ranunculaceae
SYNONYMOUS WITH Flora of North America
Thalictrum dioicum
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 076-11-004:
Thalictrum dioicum FAMILY Ranunculaceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Thalictrum dioicum
COMMON NAME:
Early Meadowrue
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_thdi_001_lvd
)
JK Marlow jkm200321_3293
March Polk County NC
[Pistillate flowers] Stigmas usually elongate, styles short or absent, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm230320_1753
March Greenville County SC
Chestnut Ridge Heritage Preserve
)
JK Marlow jkm0404x_34
April Rutherford County NC
Chimney Rock Park
[Staminate flowers] Stamens 1/4" long, threadlike, yellowish, in pendulous clusters, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm0404y_16
April Rutherford County NC
Chimney Rock Park
All leaves have long petioles; leaflets may have as many as 9 rounded lobes, per Wildflowers of the Southern Mountains (Smith, 1998).
COMPARE
leaves that resemble Thalictrum
)
JK Marlow jkm070422_040
April Buncombe County NC
Blue Ridge Parkway
)
JK Marlow jkm070422_043
April Buncombe County NC
Blue Ridge Parkway
Leaflets kidney-shaped or oval, broader toward tip, 5-9 lobed, 0.5-2" wide, per Wildflowers in the Field and Forest: Northeastern US (Clemants & Gracie, 2006).
)
JK Marlow jkm070422_048
April Buncombe County NC
Blue Ridge Parkway
)
JK Marlow jkm120421_209
April Hendersonvlle County NC
Holmes Educational Forest
)
JK Marlow jkm120421_212
April Hendersonvlle County NC
Holmes Educational Forest
Comes into flower in early spring, before any of the other Thalictrum, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm120421_223
April Hendersonvlle County NC
Holmes Educational Forest
Sepals ovate or obovate, 1-3.5mm long. Anthers 1.5-3mm long, filaments longer, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm120426_696
April Yancey County NC
Blue Ridge Parkway
)
Keith Bradley kab_t_dioicum_1052
April Polk County NC
)
JK Marlow jkm120505_043
May Rabun County GA
Chattahoochee National Forest
Achenes coarsely ribbed, ellipsoid, subsessile, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
COMPARE
fruits that are an aggregate of achenes
)
JK Marlow jkm140517_821
May Transylvania County NC
)
JK Marlow jkm140517_828
May Transylvania County NC
)
JK Marlow jkm150508_942
May Union County GA
Sosebee Cove
)
Patrick D. McMillan pdmtdioicum_pw372
May
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Thalictrum dioicum
FAMILY
Ranunculaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Thalictrum dioicum
FAMILY
Ranunculaceae
SYNONYMOUS WITH
Flora of North America
Thalictrum dioicum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 076-11-004:
Thalictrum dioicum
FAMILY
Ranunculaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Thalictrum dioicum
1496
Forb
Perennial
Dioecious
Habitat: seepages, moist forests, per Weakley's Flora
Native to the Carolinas & Georgia
Common in Mountains (uncommon in NC Piedmont, rare elsewhere in GA-NC-SC)
Click here to see a map, notes, and images from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
LEAVES:
Ternately compound, with 2+ levels of compoundness
Mostly alternate
FLOWER:
Spring
Yellowish (stamens)
Unisexual
Radially symmetrical
5 sepals
Petals absent
Superior ovary
Inflorescence paniculate
FRUIT:
Spring
Aggregate of achenes
TO LEARN MORE about this plant, look it up in a good book!
- All About South Carolina Wildflowers (Midgley, 1999) p269
- Gardening with the Native Plants of Tennessee (Hunter, 2002) p178
- Newcomb's Wildflower Guide (Newcomb, 1977) p146
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p395
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p469
- 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) p307
- Wildflowers of Tennessee (Carman, 2005) p042
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p063
- Wildflowers of the Southern Mountains (Smith, 1998) p051