Silphium integrifolium
wholeleaf rosinweed, entire-leaf rosinweed
Photo credit: Larry Allain, U.S. Geological Survey
Photo credit: Larry Allain, U.S. Geological Survey
Photo credit: Larry Allain, U.S. Geological Survey
Photo credit: Larry Allain, U.S. Geological Survey
Family
Asteraceae
Leaf Arrangement
opposite
Leaf Attachment
sessile, clasping
Leaf Margin
entire, toothed
Leaf Type
simple
Leaf Shape
elliptic, lanceolate, ovate
Growth Form
forb
Flower Color
yellow
Flower Month
June - October
Height (meters)
0.5 - 1.5
Milky Sap
Yes
Armed/Unarmed
Unarmed
Origin
native
Lifespan
perennial
Habitat
Open roadsides and casually disturbed places in the prairie.