Acer

Azara

Baccharis

Berberis

Brachyglottis

Buddleia

Corylopsis

Elaeagnus

Enkianthus

Forestiera

Forsythia

Grevillea

Hamamelis

Hydrangea

Kerria

Menziesia

Morella

Notholithocarpus

Parrotiopsis

Prunus

Quillaja

Rhododendron (defines evaluations)

Ribes

Salix

Stachyurus

Stewartia

Tilia

Viburnum