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tree rhododendron
plant
Also known as: Rhododendron arboreum
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rhododendrons
- In rhododendron: Physical description
…such as tree rhododendron (R. arboreum), bearded rhododendron (R. barbatum), and the critically endangered big tree rhododendron (R. protistum variety giganteum) from Asia, some in excess of 12 metres (40 feet) high. Leaves are thick and leathery and are evergreen in all but the azalea species, some of which
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