Rhododendron is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia.
Arbutus is a genus of 12 accepted species of flowering plants in the family Ericaceae, native to temperate regions of the Mediterranean, western Europe, the Canary Islands and North America, and commonly called madrones or strawberry trees. The name Arbutus was taken by taxonomists from Latin, where it referred to the species now designated Arbutus unedo.
Daboecia, or St. Dabeoc's heath, is a small genus of flowering plants in the family Ericaceae, containing two evergreen shrubs, closely related to the genus Erica. They are native to cliffs and heathland in southern Atlantic Europe and the Azores.
Erica tetralix, the cross-leaved heath, is a species of flowering plant in the family Ericaceae, native to western Europe.
Gentiana asclepiadea, the willow gentian, is a species of flowering plant of the genus Gentiana in the family Gentianaceae, native to central and eastern Europe. It occurs primarily in mountain (montane) woodland, though it may be found in less wooded open pasture in some areas, perhaps persisting after woodland clearance.
Kalmia buxifolia is a species of flowering plant in the family Ericaceae known by the common name sandmyrtle, or sand-myrtle. It is native to the mid-Atlantic and southeastern United States, where it has a disjunct distribution, occurring in three separate areas. It is known from the Pine Barrens of New Jersey, the Coastal Plain of the Carolinas, and the southeastern Blue Ridge Mountains.
Rhododendron bureavii, the Bureau rhododendron, is a species of flowering plant in the heath family Ericaceae. It is native to western Sichuan and northern Yunnan, China, where it lives at altitudes of 2,800–4,500 m (9,200–14,800 ft).
The hardiest of Enkianthus species is E. campanulatus, a medium-sized, narrow, upright, deciduous shrub. Its bright green glossy foliage gives brilliant coppery to red fall colors. In spring it offers a profusion of bell-shaped, creamy white flowers with red veins, similar to those of the distantly related Pieris.
Enkianthus perulatus (dodan-tsutsuji) is a species of flowering plant in the family Ericaceae, native to Japan. It is a compact, slow-growing, deciduous shrub eventually growing to 2 m tall and wide. Pendent umbels of pure white, bell-shaped flowers in spring are followed in autumn by brilliant red and yellow leaf colours. Its leaves are ovate and medium to bright green in colour. It grows in sunny woodland areas.
Rhododendron argyrophyllum (银叶杜鹃) is a species of flowering plant in the heath family Ericaceae. It is native to forested slopes at 1,600–2,300 m (5,200–7,500 ft) in E and NW Guizhou, S and W Sichuan, and NE Yunnan in China.
Rhododendron fulvum is a species of flowering plant in the heath family Ericaceae, native to northern Myanmar and China. In China, it is found in southwest Sichuan, southeast Xizang, and western Yunnan. It grows at altitudes of 2,700–4,400 m (8,900–14,400 ft). It is an evergreen shrub or small tree growing to 2–8 m (6.6–26.2 ft) in height, with leathery leaves that are oblanceolate to oblong-lanceolate or obovate, 8–20 by 3–7.5 cm in size. The undersides are felted with a striking cinnamon colour. The flowers, borne in trusses in spring, are loosely bell-shaped, pale rose pink, with a crimson basal blotch and sometimes red spots.
Rhododendron calophytum, the beautiful-face rhododendron, is a species of flowering plant in the heath family Ericaceae that is native to the forests of central and eastern China, where it lives at altitudes of 1,400–4,000 m (4,600–13,100 ft). Growing to 12 m (39 ft) tall and 8 m (26 ft) broad, it is a substantial evergreen shrub. The leathery leaves are narrow and up to 30 cm (12 in) long. In early Spring trusses of bell-shaped, white or pale pink flowers, spotted with maroon inside, are produced.
Rhododendron davidsonianum, the concave-leaf rhododendron, is a species of flowering plant in the heath family Ericaceae that is native to the forests of Sichuan, China, where it lives at elevations of 1,500–2,800 m (4,900–9,200 ft). Growing to 4 m (13 ft) tall and 2.5 m (8.2 ft) broad, it is an upright evergreen shrub. The glossy leaves are lanceolate and up to 6 cm (2.4 in) long. In Spring trusses of bell-shaped, pale pink or purple flowers are produced.
Rhododendron orbiculare, the round-leaved rhododendron, is a species of flowering plant in the heath family Ericaceae that is native to forests and slopes at an elevation of 1,400–3,500 m (4,600–11,500 ft) in northeastern Guangxi and southwestern Sichuan, China. It is a compact evergreen shrub growing to 3 m (9.8 ft) tall and broad, with matt-textured round leaves and trusses of deep pink flowers in spring.
Rhododendron pachysanthum, the thick-flowered rhododendron, is a species of flowering plant in the heath family Ericaceae, that is native to Taiwan. It is an evergreen shrub growing to 2.5 m (8.2 ft) tall and broad. This species is particularly noted for its 9 cm (3.5 in) leaves, which may be heavily felted on both surfaces, red above and brown beneath. In early spring, trusses of pale pink flowers appear, spotted crimson on the inner surface.
Rhododendron pseudochrysanthum, the false-gold-flower rhododendron, is a species of flowering plant in the heath family Ericaceae, native to Taiwan. It is a low-growing evergreen shrub growing to 2.5 m (8.2 ft) tall and broad. In spring, trusses of pink buds appear, opening to pale pink flowers spotted with deeper pink on the inner surface.
Rhododendron racemosum, the racemose rhododendron, is a species of flowering plant in the heath family Ericaceae, native to forest and grassland at 1,500–3,500 m (4,900–11,500 ft) in northwestern Guizhou, southwestern Sichuan, and Yunnan, China.
Rhododendron sinogrande (凸尖杜鹃) is a species of flowering plant in the family Ericaceae. It is commonly called the great Chinese rhododendron, and is native to alpine regions at 2,100–3,600 m (6,900–11,800 ft) in southeastern Xizang and western Yunnan in China and in northeastern Myanmar.
Rhododendron williamsianum, the Williams rhododendron, is a species of flowering plant in the heath family Ericaceae. It is native to forested slopes at 1,800–2,800 m (5,900–9,200 ft) in western Guizhou, southwestern Sichuan, southeastern Xizang and northeastern Yunnan in southern and western China.
Enkianthus cernuus, the nodding enkianthus, is a species of flowering plant in the family Ericaceae, native to southern Japan. A shrub or small tree that prefers to grow in wet areas, Enkianthus cernuus f. rubens, the drooping red enkianthus, has gained the Royal Horticultural Society's Award of Garden Merit.
