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
32. Variety: 'Stozhary'
Year of registration and author of the variety: 2021 Gorobets
Combination of crossings: ♀ P. lactiflora 'Lord Kitchener' x ♂ F₁ (P. officinalis 'Rubra Plena' x P. peregrina)