The stem of Yushu is fleshy, thick, the bark is gray white, light, and has many branches. The new branches are brownish green and dark in color. The old stem of the swallow's paw is woody, gray green, and the new branch is green.
The leaves of Yushu are oval, about 4cm long and 3cm wide, and the whole is gray green. The leaves of swallow's paw are oval, about 3-5cm long and 2-3cm wide, which are longer and narrower than those of Yushu. In addition, if the swallow's paw is placed in a place with good light, its leaf edge will turn red, but Yushu will not
The flower of Yushu is a tube flower with white or light pink color. The flower color of swallow's paw is white or light red.
