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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Silphium trifoliatum var. trifoliatum (Whorled rosinweed)
Brundage, Stephanie

Silphium trifoliatum var. trifoliatum

Silphium trifoliatum L. var. trifoliatum

Whorled Rosinweed

Asteraceae (Aster Family)

Synonym(s): Silphium atropurpureum, Silphium laevigatum

USDA Symbol: SITRT

USDA Native Status: L48 (N)

 

From the Image Gallery

10 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 , IL , IN , KY , MD , NC , NY , PA , SC , TN , VA , WV

From the National Organizations Directory

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

Mt. Cuba Center - 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 var. trifoliatum in USDA Plants
FNA: Find Silphium trifoliatum var. trifoliatum in the Flora of North America (if available)
Google: Search Google for Silphium trifoliatum var. trifoliatum

Metadata

Record Modified: 2023-01-16
Research By: SET

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