Library

[Qin Jiao (Gentianae Macrophyllae Radix)]
Bitter, pungent; neutral to slightly warm; non-toxic. Mainly treats pathogenic factors of chills and fever, wind-bi syndrome caused by cold-dampness, pain in limbs and joints, promotes urination, and benefits the small intestine/bladder. Treats wind diseases regardless of whether they are recent or chronic, causing spasms and tightness throughout the body. Grows in the valleys of Feiwu. Roots are harvested in February and August and dried in the sun. (Changpu is its guiding herb.)
"Feiwu" may be a place name; currently produced in Gansong, Longdong, and Canling. Those with long roots and yellowish-white color are considered best. The root texture shows interlacing ring-like patterns, often containing soil inside.

[Dahuang (Note: Text describes properties more akin to Dang Gui/Astragalus contextually but labeled as Huang/Yellow here, translating literally based on text provided)]
Sweet; slightly warm; non-toxic. Mainly treats carbuncles and sores, chronic ulcers that fail to heal, expels pus and relieves pain, treats severe leprosy (Da Feng Lai Ji), five types of hemorrhoids and scrofula (Shu Li), tonifies deficiency, and treats various pediatric diseases. Treats wind-pathogen invading the uterus in women, drives out evil blood from the five zang organs, tonifies deficiency and damage in men, addresses wu-lao emaciation, stops thirst, abdominal pain and diarrhea, benefits qi, and promotes yin energy. Produced in Baishui has a cold nature and tonifying effect. Its stems and leaves treat thirst, tendon spasms, carbuncles, and sores. Also known as Daissen, Daishen, Dushen, Jicao, Shuzhi, and Baiben. Grows in the valleys of Shujun, Baishui, and Hanzhong. Harvested in February and October and dried in shade. (Avoid using with Gujia/Tortoise Shell.)
First produced in Longxi and Taoyang, with yellowish-white color and sweet taste, now hard to obtain. Next best is from Heishui Tangchang, white in color but coarse texture, newly harvested ones are also sweet, warm, and tonifying. There are also those from Canling and Baishui, superior in appearance to those from Shuzhong but cold in nature for tonification. There are also red-colored ones, suitable for making plasters to dissipate carbuncles and swelling; commonly used in secular prescriptions but not required by Daoist practitioners. (Daguan Vol. 7, Zhenghe p.178)

[Wuzhuyu (Evodiae Fructus)]
Pungent; warm to very hot; slightly toxic. Mainly warms the middle jiao and directs rebellious qi downward, relieves pain, treats cough and asthma, chills and fever, removes dampness and blood bi, expels wind-pathogens, and opens the cou-li (pores). Removes cold-dampness, colic pain in the abdomen, cold stagnation and excess conditions leading to indigestion, sudden evil invasion, heart and abdominal pain, rebellious qi, and benefits the five zang organs. Root: kills three types of parasites.
White skin of the root: kills pinworms, treats throat obstruction with cough and asthma, stops diarrhea, aids digestion of food, and treats residual blood after childbirth in women. Treats tinea alba (white ringworm). Also known as [Character missing/obscured]. Grows in the rivers and valleys of Shanggu and Wanqu. Harvested on the ninth day of the ninth lunar month and dried in shade. (Liaoshi is its guiding herb; avoid using with Danshen, Xiaoshi/Niter, and Bai'e/Kaolin; fear Zhiyingshi/Cinnabar.)
This is the current Shi Zhuyu (Edible Evodia). The "Book of Rites" also names it [Character], while the world calls it [Character] Zi (Seeds), likely due to unfamiliarity with the character [Character]; the character [Character] resembles [Character], hence the confusion.
Roots growing southward or eastward are superior. It is also used in Daoist formulas to eliminate the Three Corpses. (Xinxiu p.131, Daguan Vol. 13, Zhenghe p.318)