OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Nabalus altissimus   FAMILY Asteraceae_   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Prenanthes altissima   FAMILY Asteraceae_

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2015)

Nabalus altissimus

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)

Prenanthes altissima

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)

Prenanthes altissima

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, 1938)

Nabalus altissimus

 

COMMON NAME:
Tall Rattlesnake-root, Tall White Lettuce


         To see larger pictures, click or hover over the thumbnails.

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 (Newcomb, 1977).

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

JK Marlow    jkm191007_1731

October    Greenville County    SC

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 (Smith, 1998).


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, in combination with...

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 (Radford, Ahles, & Bell, 1968).

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

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

JK Marlow    jkm211106_4825

November    Pickens County    SC

Palmetto Trail

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

JK Marlow    jkm211106_4828

November    Pickens County    SC

Palmetto Trail

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

JK Marlow    jkm211106_4830

November    Pickens County    SC

Palmetto Trail

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Nabalus altissimus   FAMILY Asteraceae_

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Prenanthes altissima   FAMILY Asteraceae_

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2015)
Nabalus altissimus

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21
Prenanthes altissima

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Prenanthes altissima

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, 1938)
Nabalus altissimus

 

Find by SCIENTIFIC NAME:

1151

Forb
Perennial

Habitat: forests, per Weakley's Flora

Native to the Carolinas & Georgia

Common (rare in Coastal Plain)

map
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.)

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

LEAVES:
Simple
Alternate, reduced upward

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

FRUIT:
Summer/Fall
Reddish-brown
Achene

 

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



 


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