OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (4/24/22):
Silphium terebinthinaceum   FAMILY Asteraceae   NEW! Click to go to FSUS key


INCLUDING PLANTS NATIONAL DATABASE:
Silphium terebinthinaceum var. terebinthinaceum   FAMILY Asteraceae

INCLUDING PLANTS National Database
Silphium terebinthinaceum var. luciae-brauniae

SYNONYMOUS WITH Flora of North America
Silphium terebinthinaceum var. terebinthinaceum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-54-003:
Silphium terebinthinaceum   FAMILY Asteraceae

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Silphium rumicifolium

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Silphium terebinthinaceum

 

COMMON NAME:
Prairie-dock, Broadleaf Prairie-dock


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

image of Silphium terebinthinaceum, Prairie-dock, Broadleaf Prairie-dock

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_site_001_lvd

        

image of Silphium terebinthinaceum, Prairie-dock, Broadleaf Prairie-dock

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_site_005_lvd

        

image of Silphium terebinthinaceum, Prairie-dock, Broadleaf Prairie-dock

JK Marlow    jkm170507_709

May    Transylvania County    NC

Pisgah National Forest: Pisgah Ranger District Visitors Center

image of Silphium terebinthinaceum, Prairie-dock, Broadleaf Prairie-dock

JK Marlow    jkm140603_383

June    Pickens County    SC

SC Botanical Garden

image of Silphium terebinthinaceum, Prairie-dock, Broadleaf Prairie-dock

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, Prairie-dock, Broadleaf Prairie-dock

Richard and Teresa Ware    rtw_s_terebinthina_jr05_1

October        

image of Silphium terebinthinaceum, Prairie-dock, Broadleaf Prairie-dock

Richard and Teresa Ware    rtw_s_terebinthinaceum_3s

October        

image of Silphium terebinthinaceum, Prairie-dock, Broadleaf Prairie-dock

JK Marlow    jkm0411f_0304

November    York County    SC

Blackjacks Heritage Preserve

image of Silphium terebinthinaceum, Prairie-dock, Broadleaf Prairie-dock

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, Prairie-dock, Broadleaf Prairie-dock

JK Marlow    jkm111112_335

November    York County    SC

Blackjacks Heritage Preserve

 

WEAKLEY'S FLORA (4/24/22):
Silphium terebinthinaceum   FAMILY Asteraceae

INCLUDING PLANTS NATIONAL DATABASE:
Silphium terebinthinaceum var. terebinthinaceum   FAMILY Asteraceae

INCLUDING PLANTS National Database
Silphium terebinthinaceum var. luciae-brauniae

SYNONYMOUS WITH Flora of North America
Silphium terebinthinaceum var. terebinthinaceum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-54-003:
Silphium terebinthinaceum   FAMILY Asteraceae

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Silphium rumicifolium

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Silphium terebinthinaceum

 

Find by SCIENTIFIC NAME:

1388

Forb
Perennial

Native to the Carolinas & Georgia

Rare

Habitat: mafic or calcareous glades, barrens, woodlands, prairies, and roadsides and powerline-rights-of-ways with remnant historical vegetation of those types, 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.)

LEAVES:
Simple
Alternate & basal

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!



 


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