Jane Weber Main

Jane Weber

JANE'S GARDEN

Azaleas are among some 1,024 woody species of heath plants in the Rhododendron genus of the Family Ericaceae. Rhododendron origins date to about 70 million years ago, but species distribution has been reduced, isolated and affected by ice ages, continental drift, evolution of grasslands and deserts, climate change and, most recently, human factors. Gardeners consider rhododendrons to be taller shrubs and small trees with large leathery evergreen leaves. The azalea group of rhododendrons contains smaller shrubs with small thin leaves that are often deciduous. Bigger rhododendrons usually have larger flowers with 10 stamens while most smaller azalea flowers have five stamens.

Most rhododendron species originated in Asia, where new-to-science species are still being identified. North America now has about 26 native species of rhododendrons — all from sheltered montane forest regions, including the Appalachian Mountain chain, the Pacific Northwest and California. Rhododendron is the state flower of Washington and West Virginia; state tree of Sikim and Uttarakhand in northern India; provincial flower of Jiangxi in China; and the national flower of Nepal.

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