味甘，平，无毒。主治大小便不通，利水道，除邪气。肠胃邪热气，消肿，性滑利。
久服轻身，不饥，其实尤良。治小儿头疮 。华∶主小儿痫，小便不利，伤热。一名零
榆。生 川山谷。二月采皮，取白曝干。八月采实，并勿令中湿，湿则伤人。
此即今榆树尔，剥取皮，刮除上赤皮，亦可临时用之。性至滑利，初生叶，人以作糜羹
辈，令人睡眠。嵇公所谓∶“榆，令人眠也”。断谷乃屑其皮，并檀皮服之，即所谓不饥者也。
（《新修》一一四页，《大观》卷十二，《政和》二九八页）
味甘、辛，温、大温，无毒。主治咳逆上气，温疟寒热洗洗在皮肤中，妇人漏下绝子，
诸恶疮疡，金疮，煮饮之。温中止痛，除客血内塞，中风 ，汗不出，湿痹，中恶，客气虚
冷，补五脏，生肌肉。一名干归。生陇西川谷。二月、八月采根，阴干。（恶 茹，畏菖蒲、
海藻、牡蒙。）
今陇西叨阳、黑水当归，多肉少枝气香，名马尾当归，稍难得。西川北部当归，多根枝
而细。历阳所出，色白而气味薄，不相似，呼为草当归，阙少时乃用之。方家有云真当归，
正谓此，有好恶故也。世用甚多。道方时须尔。（《大观》卷八，《政和》一九九页）
味甘、辛，温，无毒。主治大风，头眩痛，恶风，风邪，目盲无所见，风行周身，骨节
疼痹，烦满。胁痛胁风，头面去来，四肢挛急，字乳金疮内痉。久服轻身。叶∶主中风热汗
出。一名铜芸，一名茴草，一名百枝，一名屏风，一名 根，一名百蜚。生沙苑川泽及邯郸、
琅琊、上蔡。二月、十月采根，曝干。（得泽泻、 本治风，得当归、芍药、阳起石、禹余
粮治妇人子藏风，杀附子毒，恶干姜、藜芦、白蔹、芫花。）
郡县无名沙苑。今第一出彭城、兰陵，即近琅琊者。郁州互市亦得之。次出襄阳、义阳
县界，亦可用，即近上蔡者。唯实而脂润，头节坚如蚯蚓头者为好。世用治风最要，道方时
用。（《大观》卷七，《政和》一七九页）
榆皮：味甘，性平，无毒。主治大小便不通畅，通利水道，祛除邪气。清除肠胃中的邪热之气，消除肿胀，药性滑利。长期服用可使人身体轻盈，不感饥饿，其中榆树的果实功效更佳。治疗小儿头部疮疡。陶华认为：主治小儿惊痫，小便不利，伤于热邪。又名零榆。生长在山川山谷中。二月采集树皮，取白色部分晒干。八月采集果实，并注意不要使其受潮，受潮后对人有害。这就是现在的榆树，剥取树皮，刮去外层红色的皮，也可以临时使用。其性质非常滑利，初生的叶子，人们用来煮粥羹，能令人睡眠。嵇公所说的：“榆，能令人安眠。”断谷（辟谷）时则将其皮磨成屑，并与檀树皮一起服用，这就是所谓的不饥饿。
当归：味甘、辛，性温至大温，无毒。主治咳嗽气逆，温疟寒热如浴水洒身般在皮肤中，妇人漏下不止及不孕症，各种恶疮疡，金创（金属利器造成的创伤），煎煮饮用。温暖中焦，止痛，祛除体内停滞的瘀血，中风，汗不出，湿痹，中恶邪气，客气虚冷，补益五脏，生肌长肉。又名干归。生长在陇西的山川山谷中。二月、八月采集根部，阴干。（忌与茹草同用，畏菖蒲、海藻、牡蒙。）
现在的陇西叨阳、黑水产的当归，肉质多而枝少，气味香，名为马尾当归，稍难获得。西川北部产的当归，根枝多且细。历阳所产的，颜色白而气味淡薄，不像正宗的，被称为草当归，缺乏时令才使用。方书家所说的真当归，正是指这种，因为有优劣之分。世间使用非常多，道家方剂时常需要。（《大观》卷八，《政和》一九九页）
防风：味甘、辛，性温，无毒。主治大风，头眩痛，恶风，风邪，目盲无所见，风邪流行周身，骨节疼痛痹阻，烦闷胀满。胁痛胁风，头面部游走不定，四肢拘挛急迫，产后及金创内痉。长期服用可轻身。叶：主治中风热汗出。又名铜芸，又名茴草，又名百枝，又名屏风，又名 根（此处原文可能有缺字或异体，暂保留），又名百蜚。生长在沙苑川泽以及邯郸、琅琊、上蔡等地。二月、十月采集根部，晒干。（与泽泻、藁本同用治风，与当归、芍药、阳起石、禹余粮同用治妇人子宫风，能杀附子毒，忌与干姜、藜芦、白蔹、芫花同用。）
郡县中没有叫沙苑的地方。现在第一产地是彭城、兰陵，即靠近琅琊的地方。郁州互市也能得到。其次出产于襄阳、义阳县界，也可以使用，即靠近上蔡的地方。只有质地坚实且脂润，头部结节坚硬如蚯蚓头者为好。世间用于治风最为重要，道家方剂时常使用。（《大观》卷七，《政和》一七九页）
Ulmus Cortex (Yupi): Sweet in taste, neutral in nature, non-toxic. It treats obstruction of urination and defecation, promotes the flow of water passages, and eliminates pathogenic factors. It clears pathogenic heat from the intestines and stomach, reduces swelling, and has a slippery and lubricating property. Long-term consumption lightens the body and prevents hunger; its fruits are particularly effective. It treats head sores in children. Tao Hua states: It treats infantile convulsions, difficult urination, and heat injury. Also known as Lingyu. It grows in mountain valleys. The bark is harvested in the second lunar month, the white part is taken and sun-dried. The fruits are harvested in the eighth lunar month, keeping them dry to avoid harm to humans. This is the modern elm tree; the bark is peeled, the outer red layer is scraped off, and it can be used temporarily. Its nature is very slippery. The newly sprouted leaves are made into porridge or soup by people to induce sleep. As Ji Gong said: "Elm induces sleep." During grain avoidance (Bigu), the bark is ground into powder and taken with Taxodium bark, which is referred to as preventing hunger.
Angelicae Sinensis Radix (Danggui): Sweet and pungent in taste, warm to very warm in nature, non-toxic. It treats cough with rebellious qi, warm malaria with chills and fever feeling like cold water sprinkling on the skin, leukorrhea and infertility in women, various malignant sores and ulcers, metallic wounds, when decocted and drunk. It warms the middle jiao, relieves pain, removes stagnant blood internally, treats wind-stroke, anhidrosis, damp-bi syndrome, sudden evil invasion, deficiency-cold caused by external pathogens, tonifies the five zang organs, and generates flesh. Also known as Gan Gui. It grows in the mountains and valleys of Longxi. The roots are harvested in the second and eighth lunar months and dried in the shade. (Incompatible with Rucao; adverse reaction with Changpu, Sargassum, and Mumeng.)
The Danggui from Taoyang and Heishui in Longxi today has thick flesh and few branches, with a fragrant aroma, named Ma Wei Danggui, which is slightly hard to obtain. The Danggui from northern Sichuan has many roots and branches but is thin. The one from Liyang is white in color with weak flavor and odor, unlike the authentic one, called Cao Danggui, used only when scarce. Practitioners refer to this as true Danggui, due to variations in quality. It is widely used in the world and frequently needed in Daoist prescriptions.
Saposhnikoviae Radix (Fangfeng): Sweet and pungent in taste, warm in nature, non-toxic. It treats severe wind, dizziness and headache, aversion to wind, wind pathogens, blindness, wind circulating throughout the body, joint pain and bi-syndrome, irritability and fullness. Hypochondriac pain and wind, wandering pain in the head and face, spasms and tightness in the four limbs, postpartum and traumatic internal spasms. Long-term consumption lightens the body. Leaves: Treat wind-heat with sweating. Also known as Tongyun, Huicao, Baizhi, Pingfeng, Gen, and Baifei. It grows in Shayan marshes and rivers, as well as Handan, Langya, and Shangcai. The roots are harvested in the second and tenth lunar months and sun-dried. (Combined with Alisma and Ligusticum to treat wind; combined with Angelicae Sinensis Radix, Paeoniae Radix Alba, Yangqishi, and Yuyuliang to treat uterine wind in women; detoxifies Aconitum; incompatible with Dry Ginger, Veratrum, Ampelopsis, and Genkwa.)
There is no place named Shayan in counties. Currently, the primary production areas are Pengcheng and Lanling, near Langya. It can also be obtained through trade in Yuzhou. Secondary production areas are Xiangyang and Yiyang county borders, near Shangcai, which are also usable. The best quality is solid, moist, with nodes at the head hard like an earthworm's head. It is most important for treating wind in the world and is frequently used in Daoist prescriptions.