Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Apiales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Oxypolis rigidior
FAMILY
Apiaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Cowbane at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Oxypolis rigidior
FAMILY
Apiaceae
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 140-34-001:
Oxypolis rigidior FAMILY Apiaceae
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Oxypolis rigidior
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Oxypolis turgida
COMMON NAME:
Cowbane, Pig-potato, Stiff Cowbane
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_oxri_001_lhd
)
USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_oxri_004_lvd
)
JK Marlow jkm230525_3514
May Jackson County NC
Blue Ridge Parkway
)
JK Marlow jkm150827_982
August Haywood County NC
Corneille Bryan Native Garden
Umbels composed of 12-25 rays, the longest 3-5cm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm0509h_22
September Rutherford County NC
Chimney Rock Park
Very variable in the size, shape, and toothing/lobing of the leaflets, per Weakley's Flora (2022).
)
JK Marlow jkm0509h_23
September Rutherford County NC
Chimney Rock Park
)
JK Marlow jkm0509k_37b
September Transylvania County NC
Silver Run Preserve
)
JK Marlow jkm080928_140
September Jackson County NC
Blue Ridge Parkway
)
JK Marlow jkm080928_163
September Jackson County NC
Blue Ridge Parkway
)
JK Marlow jkm090905_024
September Oconee County SC
Sumter National Forest: Andrew Pickens Ranger District
)
JK Marlow jkm130927_653
September Jackson County NC
)
JK Marlow jkm210919_3752
September Greenville County SC
)
Richard and Teresa Ware rtw_o_rigidior_cowbane_4
September
Umbels are compound, loose, and to 6" wide, per Wildflowers of Tennessee (Carman, 2005).
)
JK Marlow s080928_b
September Jackson County NC
Blue Ridge Parkway
Leaflets have few or no teeth (teeth, if any, above middle of leaflet blade), per Wildflowers of Tennessee (Carman, 2005).
COMPARE
pinnately compound leaves of forbs
)
JK Marlow jkm221004_0134
October Greenville County SC
Bald Rock Heritage Preserve
)
JK Marlow s071001_a
October Jackson County NC
Gorges State Park
)
JK Marlow s071001_a2
October Jackson County NC
Gorges State Park
Fruit strongly flattened dorsally, broadly ellipsoid-oblong, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow s071001_c
October Jackson County NC
Gorges State Park
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Oxypolis rigidior
FAMILY
Apiaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Oxypolis rigidior
FAMILY
Apiaceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 140-34-001:
Oxypolis rigidior
FAMILY
Apiaceae
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Oxypolis rigidior
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Oxypolis turgida
1009
Forb
Perennial
Habitat: bogs, seepages, swamps, wet meadows, streambanks, per Weakley's Flora
Native to the Carolinas & Georgia
Common (uncommon in GA Coastal Plain)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Odd-pinnately compound: 5-11(13) leaflets
Alternate
FLOWER:
Summer/Fall
White
Radially symmetrical
5-merous
Sepals minute
5 petals
Inferior ovary
Flowers in compound umbels
FRUIT:
Fall
Schizocarp of two mericarps
TO LEARN MORE about this plant, look it up in a good book!
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p118
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p115
- Newcomb's Wildflower Guide (Newcomb, 1977) p222
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p247
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p150
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p036
- Wildflowers of Tennessee (Carman, 2005) p180
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p216
- Wildflowers of the Southern Mountains (Smith, 1998) p114
- Wildflowers of the Sandhills Region (Sorrie, 2011) p181
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