Alnus

Amelanchier

Arbutus

Arctostaphylos

Baccharis

Ceanothus

Chamaebatiaria

Chrysolepis

Cornus

Crataegus

Dasiphora

Garrya

Gaultheria

Holodiscus

Leucothoe

Malus

Menziesia

Notholithocarpus

Oemleria

Oplopanax

Oxalis

Philadelphus

Physocarpus

Prunus

Purshia

Rhododendron (defines evaluations)

Rhus

Ribes

Robinia

Rosa

Rubus

Sambucus

Sorbus

Spiraea

Symphoricarpos

Umbellularia

Vancouveria

Viburnum