a variety of azalea (Rhododendron nudiflorum) with pink, sweet-smelling flowers, purplish-red at the base
See pinxter flower in American Heritage Dictionary 4
(pĭngkˈstər)
noun
A deciduous shrub (Rhododendron periclymenoides) of the southeast United States, having a funnel-shaped pink or purple corolla and flowers that bloom before the leaves appear.