Asian Garden The winners in this garden are Camellia brevistyla(flowers) and Hydrangea-Dichroa febrifuga(fruits) and other plants -Disporum cantoniense, Sorbus caloneura, Chimonanthus praecox 'Grandiflorus', Cotoneaster rhytidophyllus look gorgeous
The plant came to us as Camellia grijsii, but it is not that. It has recently been identified as Camellia brevistyla.
The winter-sweet is a yellow form, usually in cultivation these have designations additional to the species name. Also you didn't indicate what the last two pictures show.
The wintersweet came to us in 1979 as Chimonanthus praecox var. grandiflorus from Hillier & Sons. It is now recorded as Chimonanthus praecox 'Grandiflorus'. I'm not sure what the other two are. A Cotoneaster and ?
in the old Database we have only one winter-sweet and it labeled Chimonanthus praecox. I think if somebody interested in more details they can find a label, this plant is just on the Upper Asian way(left side, before Moon Gate & Tunnel) I agree, in Japan, I saw Chimonanthus flowers looking different, more round and light yellow. I am not sure about the last two cotoneasters, didn't take pictures of labels, probably Cotoneaster rhytidophyllus and Cotoneaster glabratus. I promise when I go to UBCG in January I will add proper names, sorry
A name used in western cultivation for a large, clear yellow form with no purple staining in the center is 'Luteus'.