Rhododendron 'Hank's Folly', which is a Hank Schannen hybrid documented as 'Chionoides' x 'Gibraltar', has been determined to be a triploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
'Hank's Folly' is a cross of an elepidote with a deciduous azalea.
'Gibraltar' has been determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Triploid 'Hank's Folly',
Tetraploid 'Gibraltar'
Source: Rarefind Nursery
John and Sally Perkins
