Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA (11/30/12):
Cirsium altissimum
FAMILY
Asteraceae__
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Tall Thistle at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Cirsium altissimum
FAMILY
Asteraceae__
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-25-006:
Carduus altissimus
FAMILY
Asteraceae__
COMMON NAME:
Tall Thistle
To see larger pictures, click or hover over the thumbnails.
JK Marlow jkm070927_016b
September Pickens County SC
Jocassee Gorges
Involucres have the middle and outer bracts tipped with a spine, per Wildflowers of Tennessee.
JK Marlow jkm070927_021
September Pickens County SC
Jocassee Gorges
Involucres 2-3.5cm long, 2-3.5cm broad, weakly arachnose, per Vascular Flora of the Carolinas.
COMPARE
involucral bracts of Thistles
JK Marlow jkm120910_591
September Greenville County SC
Swamp Rabbit Trail
Leaves lobed or unlobed, leaf margins not revolute, per Vascular Flora of the Carolinas.
JK Marlow jkm120910_594
September Greenville County SC
Swamp Rabbit Trail
Stems are smooth and leaves are white-woolly on the undersides, per Wildflowers of the Southern Mountains.
JK Marlow jkm120910_600
September Greenville County SC
Swamp Rabbit Trail
Most of its cauline leaves are unlobed, though they may have large teeth, per Wildflowers of the Southern Mountains.
JK Marlow jkm120910_607
September Greenville County SC
Swamp Rabbit Trail
Heads pedunculate, per Weakley's Flora.
JK Marlow s070927_ef
September Pickens County SC
Jocassee Gorges
Leaves densely white-hairy beneath, per Wildflowers of Tennessee.
JK Marlow jkm151024_540b
October Greenville County SC
Blue Wall Preserve
The pappus is plumose [feathery], per Wildflowers of the Southern Mountains.
WEAKLEY'S FLORA (11/30/12):
Cirsium altissimum
FAMILY
Asteraceae__
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Cirsium altissimum
FAMILY
Asteraceae__
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-25-006:
Carduus altissimus
FAMILY
Asteraceae__