Article (magazine)  (2022)  Page(s) 83.  
 
The origin of the Herbaceous Hybrid Gp varieties of the M. M. Gryshko National Botanical Garden of the NAS of Ukraine breeding
34. Variety: 'Chempion'
Year of registration and author of the variety: 2009 Gorobets
Combination of crossings: ♀ P. lactiflora 'Adolphe Rousseau' x ♂ F₁ (P. officinalis 'Rubra Plena' x P. peregrina)