Adenium

Adenocarpus

Agave

Amorpha

Argyrocytisus

Bauhinia

Calycanthus

Caragana

Ceratonia

Cercis

Chimonanthus

Cytisus

Fremontodendron

Hakea

Hibiscus

Holodiscus

Lagerstroemia

Maackia

Magnolia

Nerium

Olneya

Parkinsonia

Parrotia

Pterostyrax

Rhododendron (defines evaluations)

Robinia

Santolina

Ulex

Yucca