Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
		
	
	
	
	
						
	
	
	
	
	
	
	
	
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
	
	
		 
		
	
Silphium laciniatum 	
	
	
	
	
	 
	 
	FAMILY
	Asteraceae
	
	
	
		 
		 
		
		Go to FSUS key
	
	
Dig deeper at SERNEC, a consortium of southeastern herbaria.
"Westward we went, and still westward, through a flat, arid country with no verdure except the compass plant, which we named for the reason that its large, flat leaves always pointed north and south" (William Clark Kennerly, 1843). Read more at Scientific Library.
INCLUDING
	
	
	
	
	PLANTS NATIONAL DATABASE:
	
			
	
	
	
    
	
	Silphium laciniatum var. laciniatum 
	
	
	
	 
	 
	FAMILY
	Asteraceae
	
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Silphium laciniatum
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Silphium laciniatum
INCLUDING Floristic Synthesis of North America (Kartesz, 1999)
Silphium laciniatum var. laciniatum
INCLUDING Floristic Synthesis of North America (Kartesz, 1999)
Silphium laciniatum var. robinsonii
COMMON NAME:
Compassplant
To see larger pictures, click or hover over the thumbnails.
	
	
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
	
	
		 
		
	
Silphium laciniatum 	
	
	
	
	
	 
	 
	FAMILY
	Asteraceae
	
INCLUDING
	
	
	PLANTS NATIONAL DATABASE:
	
			
	
	
	
    
	
	
	Silphium laciniatum var. laciniatum 
	
	 
	 
	FAMILY
	Asteraceae
	
	SYNONYMOUS WITH
	
 
	Floristic Synthesis of North America. BONAP (Kartesz, 2021)
	
	
	Silphium laciniatum
	
	SYNONYMOUS WITH
	
	Flora of North America north of Mexico, vol. 19-20-21
	
	Silphium laciniatum
	
	INCLUDING
	
 
	Floristic Synthesis of North America (Kartesz, 1999)
	
	
	Silphium laciniatum var. laciniatum
	
	INCLUDING
	
 
	Floristic Synthesis of North America (Kartesz, 1999)
	
	
	Silphium laciniatum var. robinsonii
	
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".

