Correct a misunderstanding of your name. There is no name "Dendrobium rich bean" in Dendrobium. If you call it this, it means unprofessional. Fengdou is a dried product of Dendrobium, which is called Fengdou because of its unique shape. Fengdou is one of the product forms of Dendrobium.

Iron and bark include Dendrobium leaves, Dendrobium flowers, Fengdou, Dendrobium powder and fresh Dendrobium strips.

As mentioned earlier, Fengdou is a dried product of Dendrobium, with a unique shape and a spiral shape. This product is spiral or spring-shaped, generally with 2 ~ 6 spirals. The straightened stem is 3.5 ~ 8 cm long and 0.2 ~ 0.4 cm in diameter. The surface is yellow-green or slightly golden yellow, with fine longitudinal wrinkles and obvious nodes, and sometimes residual gray-white leaf sheaths can be seen on the nodes; At one end of the stem, you can see the short fibrous roots left at the base of the stem. Solid, easily broken, flat section, grayish white to grayish green, slightly horny. Slight gas, light taste, sticky to chew.

Dendrobium cunjin is also a dried Dendrobium, but it has no shape. It is dried or dried Dendrobium (generally about 3 cm long).