昭通杜鹃是被子植物门杜鹃花科杜鹃花属的植物。
昭通杜鹃，常绿小灌木，高约30厘米。
小枝细长，密被灰色鳞片。
叶芽鳞脱落。
叶常聚生于小枝的顶端，叶片狭椭圆形、长圆形或长圆状披针形，长6-12毫米，宽2.5-5毫米，顶端钝或圆形，具短尖头，基部钝或楔形，上面暗灰绿色，被邻接的淡色鳞片，下面浅黄色，密被重叠的淡黄褐色鳞片；
叶柄长1-1.5毫米，密被淡色鳞片，无毛。
花序顶生，伞形总状，有3-7花，花芽鳞脱落；
花梗长1-2.5毫米，密被鳞片；
花萼小，长0.8-1毫米，带红色，5裂片卵形至圆形，密被淡色鳞片，边缘有鳞片和少数睫毛；
花冠小型，宽漏斗状，长4.5-6.8毫米，淡紫色，花管长2-2.8毫米，外面无鳞片和毛，内面微被短柔毛；
雄蕊（4）5（-7）枚，不等长，长约4毫米，稍短于花冠，花丝无毛；
子房长约1毫米，密被淡色鳞片，花柱长约2毫米，稍短于雄蕊，无毛。
蒴果小，长3-4毫米，密被鳞片。
花期5月，果期6月。
Inflorescences are terminal umbel-like cymes with 3-7 flowers, and flower buds lack scales. Flower stalks are 1-2.5 mm long, densely covered with scales. Sepals are small, 0.8-1 mm long, reddish, with 5 ovate to rounded lobes, covered with light-colored scales and sparse cilia along the edges. Corollas are small, funnel-shaped, 4.5-6.8 mm long, pale purple, with a 2-2.8 mm long tube, outer surface scaleless and hairless inside except for sparse short hairs. Stamens (4)5(-7), unequal in length, about 4 mm long, slightly shorter than the corolla, with hairless filaments. Ovary is about 1 mm long, densely covered with light-colored scales, and the style is about 2 mm long, slightly shorter than the stamens, and hairless.
It grows at altitudes of 2,900-3,380 meters.
It grows in mossy swamps and shrubby grasslands.
The type specimen was collected from Zhaotong, Yunnan.
It is an evergreen dwarf shrub, approximately 30 cm tall, with slender branches densely covered with grayish scales. Leaf buds are scale-like and shed. Leaves are usually clustered at the tips of branches, narrowly elliptic, oblong, or lanceolate, 6-12 mm long and 2.5-5 mm wide, blunt or rounded at the tip, with short pointed tips, and blunt or wedge-shaped bases. Upper leaf surfaces are dark grayish-green, covered with adjacent light-colored scales, while lower surfaces are light yellow and densely covered with overlapping light yellow-brown scales. Leaf stalks are 1-1.5 mm long, covered with light-colored scales, and hairless.
It is native to northeastern Yunnan, China.
It flowers in May.
It fruits in June.
Rhododendron tsaii
淡紫色
5月
