Native Plants

Plant Database

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Bransford, W.D. and Dolphia

Silphium trifoliatum

Silphium trifoliatum L.

Whorled Rosinweed

Asteraceae (Aster Family)

Synonym(s):

USDA Symbol: SITR7

USDA Native Status: L48 (N)

From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 4-1/2 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Yellow
Bloom Time: Jul , Aug , Sep

Distribution

USA: AL , DC , GA , IL , IN , KY , LA , MD , MS , NC , NY , OH , PA , SC , TN , VA , WV

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Delaware Nature Society - Hockessin, DE

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Silphium trifoliatum in USDA Plants
FNA: Find Silphium trifoliatum in the Flora of North America (if available)
Google: Search Google for Silphium trifoliatum

Metadata

Record Modified: 2023-01-16
Research By: TWC Staff

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