1. Root transverse section: secondary phloem (top left), vascular cambium, and secondary xylem showing narrow strands of vessels alternating with parenchymatous medullary rays.

2. Cork cells showing rippled anticlinal walls (sv).

3. Vessels and surrounding parenchyma (ts).

4. Calcium oxalate cluster crystal in the secondary phloem (ts).

5. Scalariform vessels in the secondary xylem (ls).

6. Parenchyma containing gelatinized starch (ts).

Panax pseudo ginseng (Burkill) F. H. chen ex c. chow & W. G. Huang

Tienchi Ginseng Root

Radix pseudo ginseng Pinyin: San qi, tian qi


Tienchi is a member of the ginseng (Araliaceae) family and a highly respected botanical of traditional Chinese medicine. It contains many of the same ginsenosides that occur in Panax ginseng but is specifically used to affect the viscosity of blood. It is used both internally and externally to dissolve blood clots and, paradoxically, to stop hemorrhaging. The roots (rhizomes) come in many different sizes in both processed and unprocessed forms. Prior to sectioning for microscopic examination, the crude botanical must be soaked in cold water for several hours to soften the tissue. For a comparison of the microscopy of tienchi ginseng, Asian ginseng (P. ginseng), and American ginseng (P. quinquefolius), see entry for Panax ginseng.

Transverse section: Cork consists of regularly arranged, thin-walled cells; narrow phelloderm of slightly thickened ck ck

Traditional Chinese Medicine

Traditional Chinese Medicine

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