Cup Plant Silphium perfoliatum Linnaeus var. perfoliatumExcluded  -  Non-native    
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Asterales   >   Family Asteraceae   >   Genus Silphium   

[View seasonality details]
Cup Plant in Howard Co., Maryland (7/21/2010). Photo by Bill Harms. (MBP list)

A Cup Plant blooming in Neal Smith NWR, Iowa. Photo by USFWS Headquarters. (MBP list)

View All Images

Use of images featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

View Bibliography