Book  (Oct 2001)  Page(s) 278.  Includes photo(s).

Book  (1999)  Page(s) 236.  
 
...common name traveller's joy, from the way they grow over trees and shrubs along roadsides to delight the traveller in spring with their massed white or cream flowers, and in fall...with their feathery seed heads

Magazine  (1877)  Page(s) 270.  
 
Clematis microphylla (H. Schim.).