Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Silphium at Vascular Plants of North Carolina.
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Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA (2/8/20):
Silphium asteriscus var. asteriscus
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Silphium asteriscus var. asteriscus
FAMILY
Asteraceae
INCLUDING
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-54-005:
Silphium asteriscus
FAMILY
Asteraceae
INCLUDING
Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968)
Silphium dentatum var. gatesii
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Silphium asteriscus
INCLUDING
Manual of the Southeastern Flora (Small, 1933)
Silphium asteriscus
INCLUDING
Manual of the Southeastern Flora (Small, 1933)
Silphium scaberrimum
COMMON NAME:
Starry Rosinweed
To see a detailed map, click here
Look for it in woodlands, on roadsides, per Weakley's Flora
Forb
Perennial
Native
Documented growing wild in
GA
NC
SC
Common in NC Piedmont, uncommon in NC Mountains, rare elsewhere in GA-NC-SC
...Variable
...Dry
LEAVES:
Simple
Opposite, rarely alternate (basal leaves absent at flowering)
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Disc flowers functionally staminate/ Ray flowers pistillate & fertile
Flower heads with 8-20 ray flowers, notched at apex
Inferior ovary
FRUIT:
Summer/Fall
Achene
TO LEARN MORE about this plant, look it up in a good book!
- All About South Carolina Wildflowers p258
- Forest Plants of the Southeast and Their Wildlife Uses p172?
- Wildflowers of the Eastern United States p119
- Wildflowers of Tennessee p324
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians p375?
- Wildflowers of the Southern Mountains p199
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