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Brundage, Stephanie

Silphium trifoliatum var. latifolium

Silphium trifoliatum L. var. latifolium A. Gray

Whorled Rosinweed

Asteraceae (Aster Family)

Synonym(s): Silphium confertifolium, Silphium glabrum

USDA Symbol: SITRL

USDA Native Status: L48 (N)

From the Image Gallery

5 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Arrangement: Whorled
Inflorescence: Head , Panicle
Size Notes: To about 5 feet in height.
Leaf: Leaves mostly in whorls of three, rarely opposite.
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: Jun , Jul , Aug , Sep , Oct

Distribution

USA: AL , GA , IN , LA , MS , NC , OH , SC , TN , VA

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

Metadata

Record Modified: 2023-01-16
Research By: Joseph A. Marcus

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