pink swamp azalea Rhododendron viscosum (pink form) from New England Wild Flower Society

Piedmont azalea Tallahassee.com Community Blogs

Deciduous Native Azaleas–The White Group – Middle Atlantic Chapter

SPRING BLOOMS — Horticultural landscaping blog by Vineyard Gardens

The Pink Group - Azalea Society of America

Azalea Bloom Times and Flowering Groups

Shade Shrubs CAROLYN'S SHADE GARDENS

Rhododendron viscosum (Clammy Azalea, Swamp Azalea, Swamp

Selecting and Growing Azaleas

Rhododendron viscosum (Swamp Azalea)

Plant Catalog Archive List – Rhododendron Species Botanical Garden

Adirondack Wildflowers

Henning's Home Pages