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Botanical illustration of Shi Hu
MedicinalSourced entry

Shi Hu

Dendrobium nobile

Dendrobium, the fleshy stem of an orchid ranked a premium herb in the Shennong Herbal Classic and used in Chinese medicine to strengthen the eyes and nourish yin. Research is in the lab and in animals.

Safety at a glance

  • PregnancyNothing recorded
  • BreastfeedingNothing recorded
  • MedicinesNothing recorded
  • Who should avoid itNothing recorded
  • AllergiesNothing recorded
  • ToxicityNothing recorded

Tap a box to read the safety notes below. “Nothing recorded” means our sources don't cover it, not that it's safe.

What is Shi Hu?

Plant family
Orchidaceae, the orchid family
Parts used
The fleshy stems of the orchid
Genus
Dendrobium
Species
nobile and related species

Also called

Dendrobium, Dendrobii Caulis

Traditional names

Shihu

Older scientific names

Dendrobium officinale

Traditionally used for

  • Eyes (traditional)
  • Nourishing yin (traditional)

Traditionally described as

  • Antioxidant (in lab studies)

Traditions that use it

  • Traditional Chinese Medicine

    Called shi hu; ranked a premium herb in the Shennong Herbal Classic and used to strengthen the eyes and nourish yin.

How it's prepared

Common ways Shi Hu is prepared or sold. This isn't advice on how to take it; see Safety below.

What does the research say?

Traditional use

These are traditional uses, not proven treatments.

  • Shi hu is the fleshy stem of Dendrobium orchids, a large group of about 1,500 species found across Asia, Europe and Australia. The Shennong Herbal Classic ranked it a premium medicinal herb. Several species are used, including Dendrobium nobile and Dendrobium officinale.[2]Study

  • Chinese medicine regards dendrobium as a herb that strengthens the eyes and nourishes yin, uses recorded in the Compendium of Materia Medica.[3]Study

Laboratory & animal research

Lab and animal results show what might be worth studying in people. They don't show that the herb has these effects in humans.

  • In lab and animal studies, dendrobium compounds acted as antioxidants, may help reduce inflammation, improved blood fats, slowed hardening of the arteries, reduced heart scarring and lowered blood pressure. Studies in people are extremely limited.[2]Study

  • In lab and animal studies, dendrobium polysaccharides slowed the growth of abnormal blood vessels in the retina, which damage vision in conditions such as diabetic eye disease.[3]Study

In short

Studies in people are extremely limited.

Sources

  1. [1] Structural analysis of a rhamnoarabinogalactan from the stems of Dendrobium nobile Lindl · DOI: 10.1016/j.foodchem.2010.03.012Peer-reviewed study
  2. [2] Chemical Constituents, Pharmacological Activities, and Cardiovascular Protective Mechanisms of Dendrobium · DOI: 10.3390/ijms27094149Peer-reviewed study
  3. [3] Inhibition of retinal neovascularization by Dendrobium polysaccharides: a review · DOI: 10.3389/fphar.2025.1584553Peer-reviewed study

This information is educational and traditional in nature, and is not a substitute for professional medical advice. Unfamiliar word? See what these words mean.