OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Silphium mohrii   FAMILY Asteraceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Silphium mohrii   FAMILY Asteraceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Silphium mohrii

SYNONYMOUS WITH Flora of North America

Silphium mohrii

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)

Silphium mohrii

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Silphium mohrii

 

COMMON NAME:
Shaggy Rosinweed


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

image of Silphium mohrii, Shaggy Rosinweed

Richard and Teresa Ware    rtw_silphium_mohrii_18

September        

Desnsely stiff-haired stems give the plant a "shaggy" appearance, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).

image of Silphium mohrii, Shaggy Rosinweed

Richard and Teresa Ware    rtw_silphium_mohrii_2

September        

About 13 pale yellow ray flowers, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).

image of Silphium mohrii, Shaggy Rosinweed

Richard and Teresa Ware    rtw_silphium_mohrii_22_s

September        

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Silphium mohrii   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Silphium mohrii   FAMILY Asteraceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Silphium mohrii

SYNONYMOUS WITH Flora of North America
Silphium mohrii

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Silphium mohrii

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Silphium mohrii

 

Find by SCIENTIFIC NAME:

3787

Forb
Perennial

Habitat: Prairies, per Weakley's Flora

Native to Georgia

Rare

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

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
Mostly alternate, sometimes opposite (basal leaves persistent)

FLOWER:
Summer/Fall
Rays: Pale yellow
Disc: Yellow
Flower heads with 13(10-20) ray flowers, notched at apex
Inferior ovary
Disc flowers functionally staminate/ Ray flowers pistillate & fertile

FRUIT:
Summer/Fall
Achene

 

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



 


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