Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Bidens polylepis
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Ditch Daisy at Vascular Plants of North Carolina.
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Bidens aristosa
FAMILY
Asteraceae
INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Bidens aristosa
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Bidens polylepis
INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Bidens aristosa
SYNONYMOUS WITH Aquatic & Wetland Plants of Southeastern US (Godfrey & Wooten, 1979 & 1981)
Bidens polylepis
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-70-010:
Bidens polylepis FAMILY Asteraceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Bidens polylepis
COMMON NAME:
Ditch Daisy, Bearded Beggarticks, Midwestern Tickseed-sunflower, Tickseed Sunflower
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_biar_001_lvd
)
USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_biar_009_lvd
)
JK Marlow jkm0309u_2324
September Greenville County SC
Roadside
)
JK Marlow jkm090907_011
September Greenville County SC
Outer involucral bracts curled and twisted, and longer than inner bracts, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
COMPARE
involucral bracts of Bidens and Coreopsis
)
JK Marlow jkm120908_411
September Greenville County SC
12-21 calyculus bractlets [outer involucral bracts], these (6)8-12(20)mm long, per Weakley's Flora.
)
JK Marlow jkm140909_545
September Greenville County SC
Swamp Rabbit Trail
)
JK Marlow jkm140909_548
September Greenville County SC
Swamp Rabbit Trail
Leaves 1x-2x pinnately divided into lance-shaped, mostly toothed segments, per Wildflowers of Tennessee (Carman, 2005).
)
JK Marlow jkm140909_552
September Greenville County SC
Swamp Rabbit Trail
There are 12 or more outer involucral bracts, longer than inner ones, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm140917_805
September Greenville County SC
Swamp Rabbit Trail
)
JK Marlow jkm140917_827
September Greenville County SC
Swamp Rabbit Trail
)
JK Marlow jkm170914_0492
September Henderson County NC
)
JK Marlow jkm180914_4723
September Greenville County SC
)
Richard and Teresa Ware rtw_b_polylepis_jr_1
September
)
Richard and Teresa Ware rtw_bidens_polylepis
September
)
JK Marlow jkm0310a_32
October Greenville County SC
Roadside
)
JK Marlow jkm0310a_37
October Greenville County SC
Roadside
)
JK Marlow jkm111005_724
October Greenville County SC
Bright yellow rays are 1" or more long and surround a 1/2" disk, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow s031102_a
November Greenville County SC
Roadside
Fruits: Achenes; pappus of usually 2 barbed awns, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Bidens polylepis
FAMILY
Asteraceae
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Bidens aristosa
FAMILY
Asteraceae
INCLUDED WITHIN
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Bidens aristosa
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 19-20-21
Bidens polylepis
INCLUDED WITHIN
Floristic Synthesis of North America (Kartesz, 1999)
Bidens aristosa
SYNONYMOUS WITH
Aquatic & Wetland Plants of Southeastern US (Godfrey & Wooten, 1979 & 1981)
Bidens polylepis
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-70-010:
Bidens polylepis
FAMILY
Asteraceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Bidens polylepis
209
Forb
Annual
Habitat: marshes, wet meadows, ditches, bogs, per Weakley's Flora
Native west of the Carolinas & Georgia
Uncommon (rare in GA Coastal Plain)
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: usually laciniately (raggedly) pinnatisect (pinnately cleft to the midrib)
Opposite
Petioles 5-30mm long
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers neuter or styliferous & sterile
FRUIT:
Summer/Fall
Achene
TO LEARN MORE about this plant, look it up in a good book!
- All About South Carolina Wildflowers (Midgley, 1999) p119
- Gardening with the Native Plants of Tennessee (Hunter, 2002) p111
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p309
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p126?
- Wildflowers of Tennessee (Carman, 2005) p279
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p328
- Wildflowers of the Southern Mountains (Smith, 1998) p195
- Wildflowers of the Sandhills Region (Sorrie, 2011) p322
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