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Plant Details

Silphium compositum

Kidney-leaf Rosinweed, Rosinweed

Scientific Name:

Silphium compositum

Common Name:

Kidney-leaf Rosinweed, Rosinweed

Plant Family

Asteraceae (Aster Family)

Native/Alien:

NC Native

Type:

Herb/Wildflower

Bloom Color(s):

yellow

Size in Feet:

2 - 9 ft.

Light:

sun, part-shade

Soil Moisture:

xeric(*)

Bloom Time:

May to September

Bloom Area:

Coast, Piedmont, Mountains

Habitat Description:

Silphium compositum var. compositum: sandhills, other xeric forests. Common throughout NC.
Silphium compositum var. venosum: sandhills, other xeric forests. Rare in NC Coastal Plain.

State Rank:

No NC Rank Listed (*)

Global Rank:

No Global Rank listed (*)

State Status:

No NC Status Listed (*)

Federal Status:

No U.S. Status Listed (*)

Notes:

Weakley (2015) lists 2 varieties in NC: Silphium compositum var. compositum, and Silphium compositum var. venosum.

Flower

image

Flowering stalk

The flowers come atop a leafless stem that can be up to 9 ft tall.

image

Paynter, Wilmington, September, 2013

Basal leaves

The deeply indented, 4 - 12" leaves with usually reddish veins or stems are distinctive.

image

Links:

USDA PLANTS Database Record

Lady Bird Johnson Wildflower Center
Flora of North America
Bird-Friendly Native Plants



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