Native & Naturalized Plants of the Carolinas & Georgia


1151

Forb
Perennial

Native to the Carolinas & Georgia

Documented growing wild in GA NC SC

Common (uncommon in Coastal Plain)

Look for it in forests, per Weakley's Flora

map
To see a detailed map, click here

 

shade

DOES THE PLANT HAVE "MILKY SAP"?
Has milky sap (latex)

LEAVES:
Simple
Alternate, reduced upward

FLOWER:
Summer/Fall
Rays: Yellowish/ Greenish-white
Disc: Absent
Ray flowers bisexual
Inferior ovary

FRUIT:
Summer/Fall
Reddish-brown
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 (10/20/20):
Nabalus altissimus   FAMILY Asteraceae_

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Prenanthes altissima   FAMILY Asteraceae_

SYNONYMOUS WITH The Biota of North America Program. BONAP (Kartesz, 2015)
Nabalus altissimus

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-06-005:
Prenanthes altissima   FAMILY Asteraceae_

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933)
Nabalus altissimus

 

COMMON NAME:
Tall Rattlesnake-root, Tall White Lettuce


Click or hover over the thumbnails to see larger pictures.

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_naal3_001_lvd

        

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm0507n_32

July    Pickens County    SC

Jocassee Gorges

Basal leaves, if present, broad and triangular or palmately lobed or divided, per Newcomb's Wildflower Guide.

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm160919_002

September    Polk County    NC

Pearson's Falls

Petioles winged; leaf blades usually ovate or triangular, often deeply 3-lobed, per Flora of North America.

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm160919_004

September    Polk County    NC

Pearson's Falls

Leaf bases truncate to hastate or cordate, margins entire or shallowly dentate, per Flora of North America.

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

Richard and Teresa Ware    rtw_prenanthes_altissimum

October        

Usually 5 florets in each head, subtended by 5 smooth principal bracts, per Wildflowers of the Southern Mountains.


click here to see other plants that look similar to this COMPARE involucral bracts of Rattlesnake-root

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm201107_08061

November    Greenville County    SC

Caesars Head State Park

Recognized by narrow involucres with 5 pale green, glabrous phyllaries...

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm201107_08068

November    Greenville County    SC

Caesars Head State Park

...(4)5(6) florets, and pale yellow to greenish yellow corollas, per Flora of North America.

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm201107_8066

November    Greenville County    SC

Caesars Head State Park

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm201107_8067

November    Greenville County    SC

Caesars Head State Park

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm201107_8069

November    Greenville County    SC

Caesars Head State Park

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm201107_8106

November    Greenville County    SC

Ashmore Heritage Preserve

Stems 0.3-2m tall, strict to freely branched above, per Vascular Flora of the Carolinas.

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm201107_8115

November    Greenville County    SC

Ashmore Heritage Preserve

Cypselae subcylindric, subterete; pappi usually whitish or pale yellow, per Flora of North America.

image of Nabalus altissimus, Tall Rattlesnake-root, Tall White Lettuce

JK Marlow    jkm201113_8205

November    Greenville County    SC

Caesars Head State Park