Specializing in the breeding and genetics of barley, silphium, and oat

Kevin P. Smith Lab

Silflower: Native Perennial

Multiple images of Silflower, a yellow flower with deep green foliage — Karen Beaubien, Chase Krug, Sydney Schiffner

Native Range of the Silphium Genus

Full Range of the Silphium genus extending through most of the Eastern United States — This map shows the full range of the Silphium genus, extending throughout the eastern United States.

Biota of North America Program

A collage of all 16 species in the Silphium genus

Range of Wholeleaf Rosinweed

Range of Wholeleaf Rosinweed covering the east-central United States — The growing range of Wholeleaf Rosinweed (Silphium integrefolium) extends through the east-central United States.

Biota of North America Program

Why Garden with Native Plants?

Native plants are adapted to the local climate and soil conditions where they naturally occur. Native plants are also advantageous, because:

Native plants do not require fertilizers and require fewer pesticides than lawns.
Native plants require less water than lawns and help prevent erosion.
Native plants help reduce air pollution.
Native plants provide shelter and food for wildlife.
Native plants promote biodiversity and stewardship of our natural heritage.
Native plants are beautiful and increase scenic values!

U.S. Forest Service

Range of Cup Plant

Range of Cup Plant covering the upper Mid-West United States — The growing range of Cup Plant (Silphium perfoliatum) covers the entire Upper Mid-West in the United States.

Biota of North America Program

Tags

Silphium integrefolium