'Veesprite' is a Triploid

Rhododendron 'Veesprite', which is a Forster hybrid documented as Rhododendron impeditum x Rhododendron racemosum, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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.

Summary of Ploidy Levels

Diploid Rhododendron minus,
Diploid Rhododendron racemosum,
Triploid 'Angel Powder',
Triploid 'April Rhapsody',
Triploid 'Bluenose',
Triploid 'Evening Sky',
Triploid 'Kehr's White Ruffles',
Triploid 'Purple Gem',
Triploid 'Ramapo',
Triploid 'Ramolet',
Triploid 'Veesprite',
Tetraploid Rhododendron minus var. minus 'Epoch'

Source: John and Sally Perkins

John and Sally Perkins