Rhododendrons of ChinaRhododendrons originated in the Tertiary period, tens of millions of years ago. Now there are some 900 species in the world. China has more than 600 species of these admired and...
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Rhododendrons of ChinaRhododendrons originated in the Tertiary period, tens of millions of years ago. Now there are some 900 species in the world. China has more than 600 species of these admired and...