‘Glendoick Glacier’
‘Panda’
‘Hachmann\'s Rokoko’
‘Everest’
R. kiusianum
Rubinstern x (Red Pimpernel x Kermesinum)
‘Johanna’
R. mucronatum
‘Shinnyo-no-Tsuki’
‘Rubinstern’
Red Pimpernel x Kermesinum
‘Florida’
R. ripense
R. macrosepalum
‘Zetsurin’
‘Adesugata’
‘Moederkensdag’
‘Kermesinum’
‘Red Pimpernel’
‘Vuyk's Scarlet’
‘Kyokkonishiki’
‘Shikainami’
‘Reiko’
‘Yama-no-Hikari’
‘Professeur Wolters’
‘Hinodegiri’
R. indicum
‘Prins Bernhard’
‘Takasago’
‘Hototogisu’
‘Ungetsu’
‘Kazan’
‘Baronne de Vriere’
R. obtusum
Vuyk nr.11 x Apollo
R. eriocarpum
‘Kikoshi’
‘Bandai’
R. kaempferi
Vuyk nr.11
‘Apollo’
‘Izayoi’
