都支杜鹃(Rhododendronshanii)为大别山区高海拔特有种,以安徽省岳西县包家河都支尖命名,是一种常绿灌木或小乔木,高1.5～4.5米。叶厚革质,背面密被黄褐色毡状绒毛,叶面全缘鲜绿有光泽,矩圆状椭圆形,长6～10厘米,宽3～6厘米。枝条粗壮,小枝、芽密被锈褐色毡状绒毛。花两性整齐,顶生伞形花序状的总状花序,花萼5裂,花冠广漏斗状,先端5裂,淡红色,雄蕊10枚,雌蕊1枚。花期4月下旬至6月,花大似玉兰花,当地山区群众 Rhododendronshanii is a endemic species at high altitude in the Dabie Mountains, named after the tip of the Bajiahe River in Yuexi County, Anhui Province. It is an evergreen shrub or small tree with a height of 1.5 to 4.5 meters. Leaf thick leathery, abaxially densely yellow-brown felted villi, the entire edge of the bright green leaves, oblong oval, 6 to 10 cm long, 3 to 6 cm wide. Branches stout, twigs, buds densely rusty brown felted villi. Flowers bisexual, terminal umbel-like racemes, calyx 5 crack, corolla wide funnel-shaped, apex 5 cracked, pink, stamens 10, 1 pistil. Flowering in late April to June, flowers like magnolia, the local mountain masses