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Silphium integrifolium (Wholeleaf rosinweed)
Bruso, George H.

Silphium integrifolium

Silphium integrifolium Michx.

Wholeleaf Rosinweed, Entire-leaf Rosinweed

Asteraceae (Aster Family)


USDA Symbol: SIIN2

USDA Native Status: L48 (N), CAN (I?)

A coarse perennial, 2-6 ft. tall with large, yellow composite flowers and rough, paired, oval to lance-shaped leaves.


From the Image Gallery

18 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Class: 3-6 ft.

Bloom Information

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


USA: AL , AR , CO , IA , IL , IN , KS , KY , LA , MI , MN , MO , MS , NE , NM , OK , SD , TN , TX , WI , WY
Canada: ON
Native Distribution: IN to MS, w. to e. Great Plains
Native Habitat: Prairies

Growing Conditions

Light Requirement: Sun
Soil Description: Well-drained soils.
Conditions Comments: Not Available

Value to Beneficial Insects

Special Value to Native Bees
Special Value to Bumble Bees

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


Description: Sow unstratified seed in fall or stratified seed in spring.
Seed Collection: Collect in Sep. and Oct.
Seed Treatment: Cold-moist stratification for 2 months.
Commercially Avail: yes

Find Seed or Plants

View propagation protocol from Native Plants Network.

National Wetland Indicator Status

Status: FAC
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

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

Nueces River Authority - Uvalde, TX
Mt. Cuba Center - Hockessin, DE

Additional resources

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


Record Modified: 2012-12-09
Research By: TWC Staff

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