OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Malpighiales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Cnidoscolus stimulosus   FAMILY Euphorbiaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cnidoscolus urens var. stimulosus   FAMILY Euphorbiaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Cnidoscolus stimulosus

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 12 (2016)

Cnidoscolus stimulosus

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

Cnidoscolus urens var. stimulosus

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

Cnidoscolus stimulosus

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 107-01-001:

Cnidoscolus stimulosus   FAMILY Euphorbiaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Bivonea stimulosa

 

COMMON NAME:
Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot


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

image of Cnidoscolus stimulosus, Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_cnst_001_lvd

        

image of Cnidoscolus stimulosus, Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot

JK Marlow    jkm060423_020

April    Charleston County    SC

Francis Marion National Forest

Leaves deeply 3 to 5-lobed and lobes toothed (maple leaf like), per Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005).

image of Cnidoscolus stimulosus, Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot

JK Marlow    jkm180504_1691

May    Meriwether-Talbot Counties    GA

Sprewell Bluff WMA

Beset with stinging trichomes, per Weakley's Flora (2012).

image of Cnidoscolus stimulosus, Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot

JK Marlow    jkm080713_039

July    Aiken County    SC

Aiken Gopher Tortoise Heritage Preserve

Central flower [of each cyme] usually pistillate, lateral usually staminate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Cnidoscolus stimulosus, Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot

JK Marlow    jkm080713_075

July    Aiken County    SC

Aiken Gopher Tortoise Heritage Preserve

Upright spherical to cylindrical pods covered by stinging hairs, per Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005).

image of Cnidoscolus stimulosus, Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot

JK Marlow    jkm090717_094

July    Georgetown County    SC

Hobcaw Barony

image of Cnidoscolus stimulosus, Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot

Jerry Bright    jeb_mg_6501

September    Orangeburg County    SC

Pollinator at work: Greater Bee Fly, Bombylius major.

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Cnidoscolus stimulosus   FAMILY Euphorbiaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cnidoscolus urens var. stimulosus   FAMILY Euphorbiaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Cnidoscolus stimulosus

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 12
Cnidoscolus stimulosus

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2015)
Cnidoscolus urens var. stimulosus

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

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 107-01-001:
Cnidoscolus stimulosus   FAMILY Euphorbiaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Bivonea stimulosa

 

Find by SCIENTIFIC NAME:

2049

Forb
Perennial
Monoecious

Habitat: Longleaf pine sandhills, dry sandy woodlands, other dry sandy soils, per Weakley's Flora

Native to the Carolinas & Georgia

Common in Coastal Plain (rare in Piedmont)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

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

IS THE PLANT "ARMED"?
Stinging trichomes present

LEAVES:
Simple
Alternate
Leaves have petioles.

FLOWER:
Spring/Summer
White
5-lobed salverform calyx
Petals absent
10-30 stamens united at base
Unisexual

FRUIT:
Spring/Summer/Fall
Capsule

 

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



 


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