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Root Appendix
There are two types, large and small. Their flowers have thousands of petals clustered together. The large one is called Yufen Tuan (Jade Powder Cluster), initially green then turning white. The small one is called Yangfen Tuan (Foreign Powder Cluster), changing from green to white, and from white to red-blue. The large one is used for medicinal purposes.
Nature: Cold. It can fumigate and kill bedbugs; when burned and fumigated with Polyporus umbellatus (Shuilonggu) and Tripterygium wilfordii (Leigongteng), the bugs are eliminated immediately (from *Baicao Jing*).
Treating Scrotal Wind (Scrotal Eczema) - Yao Boyu's Formula: Use seven flowers of Fentuan Hua, decoct in water and wash. *Liangfang Jiyao*: Use Cnidium monnieri (Shechuangzi), Amaranthus hybridus (Se Shang Yexian Qiu Hua), and root to treat throat ulceration. *Chuanxiao Fang*: Take the part growing underground, grind with vinegar, dip a feather in it, and sweep the affected area; healing occurs when saliva discharges.

*Bencao Gangmu* records the uses of the root and leaves of Yuzan Hua (Hosta plantaginea) but does not mention its flower. Nowadays, people take the Yuzan Hua containing stamens filled with lead powder, steam it over a rice cooker, claiming it removes the toxicity of lead, and its fragrance permeates the powder. Women use it to apply to the face to avoid the risk of moles (its dried leaves can fumigate and eliminate bedbugs).
Flower Nature: Slightly toxic. Used to treat urinary retention; it is used in *Huiji Fang*'s Yulong San.
The First Miraculous Pill for Treating Tinea - Baozhi's Lost Formula: 300 fresh Yuzan Hua flowers (mashed into paste), 6 liang of Mother Clove (Mudingxiang), 4 liang of Agarwood (Chenxiang), 3 qian of Borneol (Bingpian), 3 qian of Musk (Shexiang), 12 liang of Shanxi City Brick. Grind all into fine powder. Add 3.5 jin of true sesame oil and boil until cooked; add 0.5 jin of aged calcined stone (Duanshi), boiling until a drop forms a bead upon cooling. Store in a porcelain jar after cooling, seal with yellow wax, bury in soil for 21 days, then take out and apply to the affected area for self-healing. This medicine can be stored for a long time; do not let it lose its aroma.
Treating Bruises from Blows: Mash Yuzan Hua by hand until soft, and apply to the injured area.
Qingliang Gao (Cooling Ointment) - Zhang Qingzi's Secret Formula: For applying to Gan Feng Du (Childhood Malnutrition with Toxins). Rhubarb (Dahuang), Phellodendron bark (Huangbai), Coptis rhizome (Huanglian), Scutellaria root (Huangqin), Curcuma aromatica (Yujin), Niter (Pixiao), Bletilla striata (Baiji), Solena amplexicaulis (Dujiolian), Trichosanthes root (Tianhuafen), Yuzan Hua. Grind all into fine powder, mix with egg white for application, leaving the crown exposed. Also, Erxiang Zhuidu Yin treats abdominal carbuncle. Notopterygium root (Qianghuo), Forsythia fruit (Lianqiao), Perilla leaf (Zisu), Licorice root (Gancao), Angelica dahurica (Baizhi), Saposhnikovia root (Fangfeng), Honeysuckle flower (Yinhua), Trichosanthes root (Tianhuafen), Cinnamon twig (Rougui), [Missing Character], Frankincense (Ruxiang), Costus root (Muxiang), Agarwood (Chenxiang), Peony root (Shaoyao), Rehmannia root (Shengdi), Aurantium fruit (Zhike), Scutellaria root (Huangqin), Bupleurum root (Chaihu), Peucedanum root (Qianhu), Poria (Fuling), Yuzan Hua. Decoct in water and take after meals.
*Shanhai Caohan*: Mix Yuzan Hua into Shaofen (Powder) and apply to Gan Chuang Zhugeng (Ulcerative Sores with Bone Exposure).
Yulong San (Jade Dragon Powder) for Treating Urinary Retention: Use 2 qian of Yuzan Hua and 2 qian of Snake Slough (Shetui), 1 qian of Clove (Dingxiang). Grind into powder. Take 1 qian each time, mixed with wine and swallowed. (