Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (2/10/25):
Silphidium latifolium
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Broadleaf Tickseed at Vascular Plants of North Carolina.
Long known to be an evolutionary outlier in Coreopsis, the species formerly known as Coreopsis latifolia was placed in a monotypic genus by Tadesse & Crawford (2023).
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Coreopsis latifolia
FAMILY
Asteraceae
SYNONYMOUS WITH Plants of the World Online (Royal Botanic Gardens, Kew, 2024)
Silphidium latifolium
SYNONYMOUS WITH A monograph of Coreopsis s.s., Burnellia, Gyrophyllum, Pseudoagarista, and Silphidium (Coreopsideae – Compositae) (Tadesse & Crawford, 2023)
Silphidium latifolium
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Coreopsis latifolia
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Coreopsis latifolia
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-69-012:
Coreopsis latifolia FAMILY Asteraceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Coreopsis latifolia
COMMON NAME:
Broadleaf Tickseed, Broadleaf Coreopsis
To see larger pictures, click or hover over the thumbnails.
)
JK Marlow jkm070526_061
May Polk County NC
)
Richard and Teresa Ware rtw_coreopsis_latifolia_1
June
)
Richard and Teresa Ware rtw_coreopsis_latifolia_2
June
)
Richard and Teresa Ware rtw_coreopsis_latifolia_3
June
)
JK Marlow jkm160726_016
July Polk County NC
Pearson's Falls
Leaves coarsely serrate, 1.5-4.5" wide, lance-ovate to lance-elliptic, per Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001).
)
JK Marlow jkm230717_4484
July Greenville County SC
Landrum Watershed
)
JK Marlow jkm230717_4503
July Greenville County SC
Landrum Watershed
Leaf apex acuminate, margins coarsely serrate, base cuneate to attenuate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm230717_4515
July Greenville County SC
Landrum Watershed
)
JK Marlow jkm160818_586
August Polk County NC
Pearson's Falls
)
JK Marlow jkm190801_0407
August Buncombe County NC
Blue Ridge Parkway
Outer involucral bracts linear, 4-6mm long: inner lanceolate, 7-8mm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
COMPARE
involucral bracts of Bidens and Coreopsis
)
JK Marlow jkm190801_0408
August Buncombe County NC
Blue Ridge Parkway
)
JK Marlow jkm190801_0414
August Buncombe County NC
Blue Ridge Parkway
Rays yellow, 1-2cm long, not (or inconspicuously) toothed; disc flowers yellow, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm190801_0416
August Buncombe County NC
Blue Ridge Parkway
)
JK Marlow s070927_cd
September Pickens County SC
Jocassee Gorges
)
Sam Pratt sbp_3466
September Polk County NC
Pearson's Falls
)
Sam Pratt sbp_3469
September Polk County NC
Pearson's Falls
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (2/10/25):
Silphidium latifolium
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Coreopsis latifolia
FAMILY
Asteraceae
SYNONYMOUS WITH
Plants of the World Online (Royal Botanic Gardens, Kew, 2024)
Silphidium latifolium
SYNONYMOUS WITH
A monograph of Coreopsis s.s., Burnellia, Gyrophyllum, Pseudoagarista, and Silphidium (Coreopsideae – Compositae) (Tadesse & Crawford, 2023)
Silphidium latifolium
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Coreopsis latifolia
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 19-20-21
Coreopsis latifolia
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-69-012:
Coreopsis latifolia
FAMILY
Asteraceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Coreopsis latifolia
370
Forb
Perennial
Habitat: In rich, moist, cove forests and slopes at medium elevations, primarily from 500 m in the Blue Ridge Escarpment to nearly 1500 m, often locally abundant, per Weakley's Flora
Native to the Carolinas & Georgia
Uncommon to rare in Mountains
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Opposite
Petioles 0.5-3cm long
Margins coarsely serrate
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Disk flowers have 5 corolla lobes & 5 anthers
Inferior ovary
Disc flowers bisexual/ Ray flowers neuter
FRUIT:
Summer/Fall
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p153
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p147
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p103
- Wildflowers of the Southern Mountains (Smith, 1998) p195
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
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