The difference between alpine rhododendron and rhododendron

1. Difference of blades

The leaves of Rhododendron alpine are oblong-elliptical and then ovate-elliptical, or oblong-obovate, with a blunt apex and a short tip, a broad cuneate base, light gray to dark gray-green on the upper side, and light yellowish brown to reddish brown on the lower side. The leaves of rhododendron are ovate, obovate or elliptical-ovate, with a short and gradually pointed apex and a wedge-shaped base. They are dark green on the upper side and light white on the lower side.

2. The difference between flowers

The alpine rhododendron has an umbel inflorescence, a small calyx with 5 lobes, which are ovate-triangular or nearly circular. The corolla is wide funnel-shaped and the color is lavender rose to purple, and very few are white. The calyx of azalea has five deep lobes, each of which is triangular and oblong. The corolla is broadly funnel-shaped and comes in rose, dark red or bright red.