Children (6 direct children, 6 direct and indirect children):
Rhododendron calostrotum var. calciphilum
Rhododendron calostrotum var. riparioides
Rhododendron calostrotum var. calostrotum
Rhododendron calostrotum subsp. riparioides
Rhododendron calostrotum subsp. keleticum
Rhododendron calostrotum subsp. riparium