Rhododendron

Rhododendron ferrugineum

Alpine-rose

Rhododendron ponticum

Pontian rhododendron

Rhododendron hirsutum

Hairy alpenrose

Rhododendron maximum

Great rhododendron

Rhododendron lapponicum

Lapland rosebay

Rhododendron mucronulatum

Rhododendron

Rhododendron viscosum

Clammy azalea

Rhododendron periclymenoides

Election-pink

Rhododendron luteum

Yellow azalea

Rhododendron occidentale

Western azalea

Rhododendron schlippenbachii

Rhododendron calendulaceum

Flame azalea

Rhododendron canescens

Hoary azalea

Rhododendron aureum

Rhododendron albiflorum

White-flower rhododendron

Rhododendron columbianum

Western labrador-tea

Rhododendron catawbiense

Catawba rhododendron

Rhododendron simsii

Rhododendron

Rhododendron canadense

Rhodora

Rhododendron prinophyllum

Early azalea