Native & Naturalized Plants of the Carolinas & Georgia


332

Forb
Biennial

Native to the Carolinas & Georgia
Documented growing wild in GA NC SC

Uncommon (rare in Coastal Plain)

Look for it in pastures, woodlands, thickets, per Weakley's Flora

map
To see a detailed map, click here

 

full sun partial shade

LEAVES:
Simple: Lobed, unlobed and/or dissected
Alternate

FLOWER:
Summer/Fall
Disc: Purplish-lavender
Rays: Absent
Bisexual
Inferior ovary

FRUIT:
Summer/Fall
Achene

 

TO LEARN MORE about this plant, look it up in a good book!



Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales

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 (1968) 179-25-006:
Carduus altissimus   FAMILY Asteraceae__

 

COMMON NAME:
Tall Thistle


Click or hover over the thumbnails to see larger pictures.

picture of Carduus altissimus, image of Cirsium altissimum

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_cial2_001_lvd

        

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm170818_638

August    Jackson County    NC

Big Ridge Preserve

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm170818_641

August    Jackson County    NC

Big Ridge Preserve

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm170818_642

August    Jackson County    NC

Big Ridge Preserve

picture of Carduus altissimus, image of Cirsium altissimum

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.

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm070927_017

September    Pickens County    SC

Jocassee Gorges

picture of Carduus altissimus, image of Cirsium altissimum

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.


click here to see other plants that look similar to this COMPARE involucral bracts of Thistles

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm120910_572

September    Greenville County    SC

Swamp Rabbit Trail

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm120910_583

September    Greenville County    SC

Swamp Rabbit Trail

picture of Carduus altissimus, image of Cirsium altissimum

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.

picture of Carduus altissimus, image of Cirsium altissimum

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.

picture of Carduus altissimus, image of Cirsium altissimum

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.

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm120910_607

September    Greenville County    SC

Swamp Rabbit Trail

Heads pedunculate, per Weakley's Flora.

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm120910_611

September    Greenville County    SC

Swamp Rabbit Trail

picture of Carduus altissimus, image of Cirsium altissimum

Richard and Teresa Ware    rtw_cirsium_altissimum

September        

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    s070927_ef

September    Pickens County    SC

Jocassee Gorges

Leaves densely white-hairy beneath, per Wildflowers of Tennessee.

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm151024_540b

October    Greenville County    SC

Blue Wall Preserve

The pappus is plumose [feathery], per Wildflowers of the Southern Mountains.

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm151030_622

October    Greenville County    SC

Blue Wall Preserve

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm151030_625

October    Greenville County    SC

Blue Wall Preserve

picture of Carduus altissimus, image of Cirsium altissimum

JK Marlow    jkm151030_628

October    Greenville County    SC

Blue Wall Preserve