Rhododendron, persistent indumentum
Vedvarende (persistent) toment på 1. års blad. Most persistent (+++++)
This trait is inherited as an intermediate trait among species in Hypenanthum. Some hybrids lack the ability to express this trait.
Subgenus Hypenanthum
R. roxieanum var. roxieanum
R. roxieanum var. roxieanum, Haba Shan hos HE , persistent (++++). Foto: Hans Eiberg
R. yakushimanum Hornbæk form hos HE, persistent (+++) Foto: Hans Eiberg
R. yakushimanum Hornbæk form hos HE. Foto: Hans Eiberg
R. yakushimanum Hornbæk form to left and R. yakushimanum 'Yaku Princess' to the right. Foto: Hans Eiberg
R. pachysanthum. ++ -> ++++
R. pachysanthum fra Cox (white tomentum), persistent (+++++) at H. Eiberg. Foto: H. Eiberg
R. pachysanthum 'Choko', older leaves, persistent (++) , at H. Eiberg. Foto: H. Eiberg
R. pseudochrysanthum AM form, persistent (++++). Foto: H. Eiberg
R. tsariense, persistent (++). Foto: Hans Eiberg
R. luciferum 'Hobbiense', persistent (++) Foto: Hans Eiberg
R. bureavii, + -> ++
R. bureavii Glendoick at HE , persistent (++); --- R. bureavii low compact TJ at HE, persistent (+). Foto: Hans Eiberg
R. bureavii Wieting's Select
R. bureavii Wieting's Select, persistent (++), hos Henning Andersen. Foto: Hans Eiberg
R. flinckii, persistent (++)
R. flinckii at Svend Hansen. Foto: Hans Eiberg
R. haematodes ssp. chaetomallum, persistent (++)
R. haematodes ssp. chaetomallum. Foto: Hans Eiberg
R. lanatum dwarf (Hammer form), persistent (++)
R. lanatum dwarf form at HE. Foto: Hans Eiberg
R. wasonii aff. McLaren 109 (var. wenchuanense) (thin), persistent (++)
R. wasonii McLaren 109, dwarf form at HE. Foto: Hans Eiberg
R. phaeochrysum at SHH (thin), very persistent (++++)
R. phaeochrysum 'select' at Svend Hansen (as 'Rusty'). Foto: Hans Eiberg
R. longesquamatum Dwarf at SHH (thin), persistent (?)
R. longesquamatum Dwarf at Svend Hansen. Foto: Hans Eiberg
R. degronianum ssp. heptamerum var. hondoense f. micranthum (+) (kan være mørkebrunt)
Falconera/Grandia. Flere arter (+)
Hybrids
R. pseudochrysantum AM x yak. (Hornbæk) - "Snow" (more white than Golfer). Foto: Hans Eiberg
R. yakushimanum x R. bureavii at HE. Foto: Hans Eiberg
Golfer (R. yak. x R. pseudochrysanthum AM) at HE. Foto: Hans Eiberg
R. luciferum 'Hobbiense' x Flava, still some tomentum after a year
Blue Heaven (R. yak Exbury x pachysanthum RSF 78/064). Foto: Bruce Clyborn. Also the clones Silver Dane (Silver Viking) and Silvervelour have the same tomentum
R. yakushimanum x tsariense. Foto: Hans Eiberg
R. yakushimanum x smirnowii Foto: Hans Eiberg (Silver Lady, Crete,....)
R. proteoides x R. haematodes var. chaetomallum CAL Foto: Hans Eiberg
Tomentum, semi persistent(+)
R. mallotum
R. proteoides R151 (thick)
R. degronianum ssp. heptamerum var. kyomarunense
R. degronianum ssp. heptamerum some clones
R. yakushimanum Sid's blue (hvidt toment)
Many more
Thin tomentum, but very persistent (+++ ->+++++)
R. recourvoides
R. longesquamatum +++++
R. bureavoides ++ -> +++
R. aganniphum 'Rusty'
Thin tomentum is recessive; persistent is more intermediate and dominante
x with R. yakushimanum give thin and strong tomentum