Native & Naturalized Plants of the Carolinas & Georgia


1385

Forb
Perennial

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

Common

Look for it in sandhills, other xeric forests, per Weakley's Flora

map
To see a detailed map, click here

 

partial shade ...Dry

LEAVES:
Simple
Alternate

FLOWER:
Spring/Summer/Fall
Rays: Yellow
Disc: Yellow
Disc flowers functionally staminate/ Ray flowers pistillate & fertile
Flower heads with 6-12 ray flowers, notched at apex
Inferior ovary

FRUIT:
Spring/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):
Silphium compositum var. compositum   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Silphium compositum var. compositum   FAMILY Asteraceae

LESS THAN VASCULAR FLORA OF THE CAROLINAS (1968) 179-54-002a:
Silphium compositum var. compositum   FAMILY Asteraceae

 

COMMON NAME:
Kidneyleaf Rosinweed, Rhubarb-leaved Rosinweed, Compass Plant


Click or hover over the thumbnails to see larger pictures.

image of Silphium compositum var. compositum

JK Marlow    jkm060528_004

May    Greenville County    SC

Leaves deeply lobed or dissected, glabous on both surfaces, per Vascular Flora of the Carolinas.

image of Silphium compositum var. compositum

JK Marlow    jkm060528_005

May    Greenville County    SC

image of Silphium compositum var. compositum

JK Marlow    s000528_a

May    Greenville County    SC

Petioles and midribs may be green or red, per All About South Carolina Wildflowers.

image of Silphium compositum var. compositum

Richard and Teresa Ware    rtw_s_compositum_7_s

June        

image of Silphium compositum var. compositum

Carrie Hannah Penn    chp_s_compositum_flower

August    DeKalb County    GA

Stone Mountain Park

image of Silphium compositum var. compositum

JK Marlow    jkm0408k_01

August    Oconee County    SC

image of Silphium compositum var. compositum

JK Marlow    jkm120812_408

August    Greenville County    SC

Ashmore Heritage Preserve

image of Silphium compositum var. compositum

JK Marlow    jkm120812_419

August    Greenville County    SC

Ashmore Heritage Preserve

image of Silphium compositum var. compositum

JK Marlow    jkm120812_436

August    Greenville County    SC

Ashmore Heritage Preserve

image of Silphium compositum var. compositum

JK Marlow    jkm120812_444

August    Greenville County    SC

Ashmore Heritage Preserve

Silphium disc flowers have undivided styles (vs. Helianthus forked), per www.missouriplants.com

image of Silphium compositum var. compositum

JK Marlow    jkm120812_472

August    Greenville County    SC

Ashmore Heritage Preserve

Stem 1-4m tall, leafy only toward the base or stem leaves very much reduced, per Vascular Flora of the Carolinas.

image of Silphium compositum var. compositum

JK Marlow    jkm130824_660

August    Greenville County    SC

Ashmore Heritage Preserve

image of Silphium compositum var. compositum

Richard and Teresa Ware    rtw_silphium_compositum

August        

image of Silphium compositum var. compositum

JK Marlow    jkm080914_003

September    Greenville County    SC

Ashmore Heritage Preserve

Heads with 6-12 ray flowers; involucres mostly 1.0-1.5cm wide, per Weakley's Flora.

image of Silphium compositum var. compositum

JK Marlow    jkm080914_004

September    Greenville County    SC

Ashmore Heritage Preserve

Bracts wide, usually squarrose, acute or obtuse, glabrous, ciliate or erose, per Vascular Flora of the Carolinas.


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

image of Silphium compositum var. compositum

JK Marlow    jkm080914_005

September    Greenville County    SC

Ashmore Heritage Preserve

image of Silphium compositum var. compositum

JK Marlow    jkm0310b_30

October    Greenville County    SC

Ashmore Heritage Preserve