OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (11/30/12):
Sonchus asper   FAMILY Asteraceae_   NEW! Click to go to FSUS key


SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Sonchus asper   FAMILY Asteraceae_

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-08-002:
Sonchus asper   FAMILY Asteraceae_

 

COMMON NAME:
Prickly Sowthistle, Spiny-leaf Sowthistle


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

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_soas_001_lvd

        

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_soas_008_lvd

        

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm200229_2918

February    Georgetown County    SC

East Bay Park

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm200229_2921

February    Georgetown County    SC

East Bay Park

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

Gill Newberry    gn04_s_asper_inflor

April        

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm120406_578

April    Greenville County    SC

Swamp Rabbit Trail

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm120406_582

April    Greenville County    SC

Swamp Rabbit Trail

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm120406_588

April    Greenville County    SC

Swamp Rabbit Trail

Leaf margins sharp-spiny & undulating, lower leaves deeply pinnately lobed, per Forest Plants of the Southeast and Their Wildlife Uses.

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm120406_590

April    Greenville County    SC

Swamp Rabbit Trail

Rounded ear-like projections at leaf bases clasping the stem, per Forest Plants of the Southeast and Their Wildlife Uses.

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm120406_591

April    Greenville County    SC

Swamp Rabbit Trail

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm120406_593b

April    Greenville County    SC

Swamp Rabbit Trail

Involucres 10-13mm long, 8-14mm broad, bracts lanceolate, per Vascular Flora of the Carolinas.


click here to see other plants that look similar to this COMPARE involucral bracts of DYCs with ray flowers only (no disc)

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm120406_605

April    Greenville County    SC

Swamp Rabbit Trail

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm120406_605b

April    Greenville County    SC

Swamp Rabbit Trail

Rays light yellow, 1.5-2.5cm long, per Vascular Flora of the Carolinas.

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm140521_099

May    Greenville County    SC

Swamp Rabbit Trail

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm140521_101

May    Greenville County    SC

Swamp Rabbit Trail

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm170914_0459

September    Haywood County    NC

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm170914_0462

September    Haywood County    NC

image of Sonchus asper, Prickly Sowthistle, Spiny-leaf Sowthistle

JK Marlow    jkm170914_0465

September    Haywood County    NC

 

WEAKLEY'S FLORA (11/30/12):
Sonchus asper   FAMILY Asteraceae_

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Sonchus asper   FAMILY Asteraceae_

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-08-002:
Sonchus asper   FAMILY Asteraceae_

 

Find by SCIENTIFIC NAME:

1438

Forb
Winter annual

Non-native: Europe

Habitat: Roadsides, fields, pastures, disturbed areas, per Weakley's Flora

map
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)


Invasive?

This plant may be causing problems in natural areas outside its native range, according to authorities such as:

 

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

IS THE PLANT "ARMED"?
Leaves prickly ("spinulose-dentate")

LEAVES:
Simple
Alternate

FLOWER:
Spring/Summer
Rays: Yellow
Disc: Absent
Ray flowers bisexual
Inferior ovary

FRUIT:
Spring/Summer
Reddish-brown
Achene

 

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



 


Find by SCIENTIFIC NAME: