Native & Naturalized Plants of the Carolinas & Georgia


1388

Forb
Perennial

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

Rare

Look for it in mafic or calcareous glades, barrens, woodlands, & roadsides, per Weakley's Flora

map
To see a detailed map, click here

 

full sun partial shade ...Variable

LEAVES:
Simple
Alternate (basal persistent)

FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Disc flowers functionally staminate/ Ray flowers pistillate & fertile
Flower heads with 17-29 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 terebinthinaceum   FAMILY Asteraceae

GREATER THAN PLANTS NATIONAL DATABASE:
Silphium terebinthinaceum +   FAMILY Asteraceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 179-54-003:
Silphium terebinthinaceum   FAMILY Asteraceae

 

COMMON NAME:
Prairie-dock, Broadleaf Prairie-dock


Click or hover over the thumbnails to see larger pictures.

image of Silphium terebinthinaceum

JK Marlow    jkm170507_709

May    Transylvania County    NC

Pisgah National Forest: Pisgah Ranger District Visitors Center

image of Silphium terebinthinaceum

JK Marlow    jkm140603_383

June    Pickens County    SC

SC Botanical Garden

image of Silphium terebinthinaceum

Will Stuart    wil_3933315449_158f6ceda3

September    York County    SC

Blackjacks Heritage Preserve

17-29 ray florets; corollas of both ray and disc florets yellow, per Flora of North America.

image of Silphium terebinthinaceum

Richard and Teresa Ware    rtw_s_terebinthina_jr05_1

October        

image of Silphium terebinthinaceum

Richard and Teresa Ware    rtw_s_terebinthinaceum_3s

October        

image of Silphium terebinthinaceum

JK Marlow    jkm0411f_0304

November    York County    SC

Blackjacks Heritage Preserve

image of Silphium terebinthinaceum

JK Marlow    jkm0411f_07

November    York County    SC

Blackjacks Heritage Preserve

Leaves large, to 1' wide, mostly basal, with heart-shaped base & long stalk, per Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont.

image of Silphium terebinthinaceum

JK Marlow    jkm111112_335

November    York County    SC

Blackjacks Heritage Preserve