Difference between Dendrobium officinale and Yellow Grass

Dendrobium candidum is a kind of traditional Chinese medicine, which has always been very popular in the market, but it is easy to be confused with other Chinese herbs, such as yellow grass. The following is to introduce the difference between Dendrobium candidum and yellow grass.

Differences 1. Different varieties

Dendrobium candidum, also known as Dendrobium candidum, Yunnan Iron, Iron Dou, Black Section, Hepatitis and so on, is a Dendrobium species under the jurisdiction of Dendrobium orchidaceae. Yellow grass, also known as Dendrobium candidum, Dendrobium candidum, Shuidaoda, Golden Orchid, rhubarb and so on, is a variety of Dendrobium under the jurisdiction of Dendrobium orchidaceae.

Difference 2. Stems and leaves are different.

The stem of Dendrobium candidum is 9-35 cm long, 2-4 mm thick, and 1-2 cm long internodes; leaf blade oblong-lanceolate, 3-4 (- 7) cm long, 9-11 (- 15) mm wide, apex obtuse and somewhat hooked. Yellow grass stem 0.5-2 m long, 5-15 mm in diameter, Internode length 3-4 cm; leaf blade lanceolate or oblong-lanceolate, 8-12 cm long, 1.2-2.5 cm wide, apex, margin entire.

Difference 3. Flowers are different

Dendrobium candidum is a raceme, often from the upper part of the old stem, with 2-3 flowers, yellowish green flowers, petals oblong lanceolate. Yellow grass is an umbel, lateral on the upper part of the leafy stem, each 2-6 flowers in a bunch, golden yellow flowers, petals Obovate-oblong.

Difference 4. Different taste

Dendrobium candidum and yellow grass are sweet and slightly cold, which can nourish the stomach, nourish yin and clear heat, moisten the lung and kidney, and strengthen the waist. But Dendrobium candidum tastes waxy and can be chewed directly, and yellow grass has more food residue.