NameThatPlant.net: Silphium asteriscus var. trifoliatum

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

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

Dig deeper at SERNEC, a consortium of southeastern herbaria.

Read more about Silphium at Vascular Plants of North Carolina.

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Silphium trifoliatum var. trifoliatum FAMILY Asteraceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-54-006:

Silphium trifoliatum FAMILY Asteraceae

COMMON NAME:
Whorled Rosinweed

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Silphium asteriscus var. trifoliatum FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Silphium trifoliatum var. trifoliatum FAMILY Asteraceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-54-006:
Silphium trifoliatum FAMILY Asteraceae

2910

Forb
Perennial

Habitat: woodlands, roadsides, river scours, per Weakley's Flora

Native to the Carolinas & Georgia

Uncommon (rare in Coastal Plain)

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

LEAVES:
Simple
Whorls of 3 (rarely opposite)

FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Flower heads with 11-16 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!

If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".

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