Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Packera glabella
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Butterweed at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Packera glabella
FAMILY
Asteraceae
SYNONYMOUS WITH Flora of North America
Packera glabella
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-19-002:
Senecio glabellus FAMILY Asteraceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Senecio glabellus
COMMON NAME:
Butterweed, Smooth Ragwort, Smooth Groundsel, Yellowtop
To see larger pictures, click or hover over the thumbnails.
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USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_pagl17_001_lvd
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USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_segl_001_lvd
)
Will Stuart wil_8459043246_c3ebc3475f
January LA
Often forming dense stands, per Guide to the Wildflowers of SC (Porcher & Rayner, 2001).
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JK Marlow jkm090221_062
February Richland County SC
Congaree National Park
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JK Marlow jkm100313_058
March Gadsden County FL
Angus Gholson Nature Park
Annual, strict or branched above, 0.3-1m tall, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm100313_061
March Gadsden County FL
Angus Gholson Nature Park
)
JK Marlow jkm100313_064
March Gadsden County FL
Angus Gholson Nature Park
)
JK Marlow jkm100313_067
March Gadsden County FL
Angus Gholson Nature Park
Thickened 1-2.5' stem erect, mostly glabrous, but often hairy in leaf axils, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
)
JK Marlow jkm170320_0248
March Laurens County SC
Charlie Lollis Memorial Park
)
JK Marlow jkm170320_154
March Laurens County SC
Charlie Lollis Memorial Park
)
Keith Bradley kab_p_glabella_01309
March Miami-Dade County FL
)
JK Marlow jkm070414_035
April Calhoun County SC
Congaree Bluffs Heritage Preserve
Leaves pinnately divided into rounded lobes with large teeth, per All About South Carolina Wildflowers (Midgley, 1999).
)
JK Marlow jkm070414_036
April Calhoun County SC
Congaree Bluffs Heritage Preserve
)
JK Marlow jkm070414_040
April Calhoun County SC
Congaree Bluffs Heritage Preserve
)
JK Marlow jkm130415_381
April Greenville County SC
Lake Conestee Nature Park
10-15 showy ray flowers, 0.2-0.4" long, surround 0.25" disk, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
JK Marlow jkm170408_484
April Laurens County SC
Sumter National Forest: Tyger Ranger District
)
Richard and Teresa Ware rtw_s_glabella_butterwd2
April
)
JK Marlow s070414_a
April Calhoun County SC
Congaree Bluffs Heritage Preserve
Basal leaves mostly pinnatifid with rounded lobes & teeth. Stem lvs similar, per Wildflowers of Tennessee (Carman, 2005).
)
Stephanie C. Brundage scb_041721atlanta08
April DeKalb County GA
Native Plant Botanical Garden, Perimeter College, Georgia State University
)
JK Marlow jkm100513_020
May Greenville County SC
Lake Conestee Nature Park
)
JK Marlow jkm100513_021
May Greenville County SC
Lake Conestee Nature Park
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Packera glabella
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Packera glabella
FAMILY
Asteraceae
SYNONYMOUS WITH
Flora of North America
Packera glabella
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-19-002:
Senecio glabellus
FAMILY
Asteraceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Senecio glabellus
1359
Forb
Winter annual
Habitat: swamp forests, bottomland forests, cleared areas in bottomlands, wet agricultural fields, ditches, often in mucky soils, per Weakley's Flora
Native to the Carolinas & Georgia
Common (uncommon in GA Coastal Plain, rare in SC Mountains & NC Piedmont)
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:
Simple
Basal & alternate
FLOWER:
Spring/Summer
Rays: Yellow
Disc: Yellow
Disc flowers bisexual & fertile/ Ray flowers pistillate & fertile
Inferior ovary
Flowers in corymbs
FRUIT:
Spring/Summer
Brown
Achene
TO LEARN MORE about this plant, look it up in a good book!
- All About South Carolina Wildflowers (Midgley, 1999) p254
- Atlantic Coastal Plain Wildflowers (Nelson, 2006) p178
- Gardening with Native Plants of the South (Wasowski & Wasowski, 1994, 2020) p112
- Guide to the Wildflowers of SC (Porcher & Rayner, 2001) p302
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p304
- Wildflowers of the Carolina Lowcountry (Porcher, 1995) p121
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p130
- Wildflowers in the Field and Forest: Northeastern US (Clemants & Gracie, 2006) p182
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p104
- Wildflowers of Tennessee (Carman, 2005) p323
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p374
- Wildflowers of the Sandhills Region (Sorrie, 2011) p249