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NC Native Plant Society:
Plant Details

Silphium asteriscus [includes Silphium dentatum]

Rosinweed, Starry Rosinweed

Scientific Name:

Silphium asteriscus [includes Silphium dentatum]

Genus:

Silphium

Species Epithet:

asteriscus

Common Name:

Rosinweed, Starry Rosinweed

Plant Type

Herb/Wildflower

Life Cycle

Perennial

Plant Family

Asteraceae (Aster Family)

Native/Alien:

NC Native

Invasive Status:

(*Key)

Size:

3-6 ft.

Bloom Color(s):

Yellow

Light:

Sun - 6 or more hours of sun per day, Part Shade - 2 to 6 hours of sun per day, Less than 2 hours of sun per day

Soil Moisture:

Dry, Moist

Bloom Time:

June, July, August, September

Growing Area:

Mountains, Piedmont, Sandhills, Coastal Plain

Habitat Description:

“Dry to mesic woodlands and forest openings, powerlines, clearcuts, roadside banks, fields, pastures—favoring somewhat circumneutral or slightly acidic soil. Frequent to common in the eastern and central Piedmont; infrequent to fairly common in the upper Piedmont and the central and southern mountains. Very rare if still present in the lower Coastal Plain” (Vascular Plants of North Carolina).

Leaf Arrangement:

Opposite, Basal

Leaf Retention:

Deciduous

Leaf Type:

Leaves veined, not needle-like or scale-like

Leaf Form:

Simple

Life Cycle:

Perennial

Wildlife Value:

Important for Wildlife

Landscape Value:

Suitable for home landscapes

State Rank:

S?: Uncertain (*Key)

Global Rank:

G5 - Secure (*Key)

Notes:

4 varieties listed for NC. NC Rank: S4?

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Links:

USDA PLANTS Database Record

https://auth1.dpr.ncparks.gov/flora/species_account.php

https://nc.audubon.org/conservation/bird-friendly-communities/bird-friendly-native-plants

https://plants.ces.ncsu.edu/plants/silphium-asteriscus/



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