Native & Naturalized Plants of the Carolinas & Georgia


2113

Forb
Perennial

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

Uncommon (rare in GA)

Look for it in dry forests, per Weakley's Flora

map
To see a detailed map, click here

 

...Dry

LEAVES:
Simple
Alternate

FLOWER:
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:
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 reniforme   FAMILY Asteraceae

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

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 179-54-002b:
Silphium compositum var. reniforme   FAMILY Asteraceae

 

COMMON NAME:
Ragged Rosinweed, Kidneyleaf Rosinweed


Click or hover over the thumbnails to see larger pictures.

image of Silphium reniforme

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_sire9_001_lvd

        

image of Silphium reniforme

JK Marlow    jkm130718_448

July    McDowell County    NC

The hickory leaves provide an idea of scale.

image of Silphium reniforme

Will Stuart    wil_5984487318_1bf6dc0684

July    Burke County    NC

Table Rock

These basal leaves are huge, unlobed, and more than 25cm across. — Will Stuart

image of Silphium reniforme

Will Stuart    wil_5984487650_b0764288c

July    Burke County    NC

Table Rock

Heads relatively small (disk 8-15 mm wide), with 6-12 ray flowers, per Weakley's Flora.

image of Silphium reniforme

JK Marlow    jkm151024_573

October    Greenville County    SC

Blue Wall Preserve

Leaves unlobed, coarsely dentate, often to 40cm wide, per Vascular Flora of the Carolinas.

image of Silphium reniforme

JK Marlow    jkm151024_574

October    Greenville County    SC

Blue Wall Preserve

image of Silphium reniforme

JK Marlow    jkm151024_576

October    Greenville County    SC

Blue Wall 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 reniforme

JK Marlow    jkm151024_578

October    Greenville County    SC

Blue Wall Preserve

Leaves usually as wide as long or wider, per Vascular Flora of the Carolinas.

image of Silphium reniforme

JK Marlow    jkm151030_640b

October    Greenville County    SC

Blue Wall Preserve

Leaves usually pubescent, at least beneath, per Vascular Flora of the Carolinas.

image of Silphium reniforme

JK Marlow    jkm151030_641

October    Greenville County    SC

Blue Wall Preserve