（本经中品）
【气味】苦，微寒，无毒。
【主治】主风寒湿痹洗洗寒气，除热，目中青翳白膜。久服头不白，轻身。
【核】曰∶出陕西州郡，及河阳。其木似檀，枝干皆青绿，叶细如匙许大不光。并无花
实，皮上有白点，取皮渍水，色便青碧，作字亦青碧可观，不易落也。大戟为之使。恶吴茱
萸。
【 】曰∶木小岑高，木皮翠碧，甲木少阳胆，乙木厥阴肝药也。主俾通痹闭，寒热洗
洗，此少阳之枢象。目中青翳白膜，此厥阴之阖象。缘肝开窍于目，其华在发，其荣在筋，
故久服轻身，头不白耳。
（亦可作少阳之用药，厥阴之体药也。具体及用，腑脏之全德耳。）
（本经中品）
【气味】辛平，无毒。
【主治】主五内邪气，散皮肤骨节中淫淫温行毒，去三虫，化食。
【核】曰∶出晋山川谷，及高丽、太原、河东、河西、延州、同州，近道亦有。生山中，
似榆而小，叶圆而浓，其实早成，亦似榆荚，但气臭如 ，作酱则香美。能杀虫，置物中亦
辟蛀。有大小两种，小芜荑酝酱，气味尤辛；入药宜大芜荑，陈久者最良。
【 】曰∶芜荑臭膻，山榆仁也。春取榆柳之火，谓先百木青，用逗春生之端耳。当入
肝，以宣肝用，故主五内邪气，皮肤骨节中淫淫温行毒，此不从春生宣散故也。芜荑宣逗端
倪，自下而上，使从外而内者，复自内而外焉。风入虫生，风宣虫去矣。设谷入不宣，安能
开发上焦，宣五谷味，熏肤充身泽毛，若雾露之溉欤。故不独宣化谷味，且宣布水液者矣。
(Middle Category of the *Shennong Bencao Jing*)
[Flavor and Nature] Bitter, slightly cold, non-toxic.
[Indications] Primarily treats Bi syndrome (obstruction syndrome) caused by wind-cold-dampness, and symptoms of shivering due to cold; clears heat, eliminates green nebulae and white membranes in the eyes. Long-term consumption prevents graying of hair and keeps the body light and agile.
[Verification] States: Originates from various prefectures in Shaanxi Province, as well as Heyang. The tree resembles Dalbergia odorifera (Sandalwood), with branches and trunks that are all greenish-blue. The leaves are small, about the size of a spoon, and not smooth. It has no flowers or fruits. The bark has white spots; when soaked in water, the water turns blue-green. Writing with this ink remains blue-green and legible, and does not fade easily. Da戟 (Euphorbia pekinensis) serves as its guiding herb (shi). It is incompatible with Evodiae Fructus (Wuzhuyu).
[Invention] States: The tree is not tall, and the bark is emerald green. It belongs to the Jia Wood (Yang Wood) of the Shaoyang Gallbladder channel, and Yi Wood (Yin Wood) of the Jueyin Liver channel. Its main function is to unblock obstruction and relieve shivering from cold and heat, which represents the pivot mechanism of Shaoyang. Green nebulae and white membranes in the eyes represent the closing function of Jueyin. Since the Liver opens into the eyes, its luster manifests in the hair, and its nourishment resides in the sinews, long-term consumption results in a light body and non-graying hair.
(It can also be used for the Shaoyang channel and as a substantive herb for the Jueyin channel. Its specific applications reflect the complete virtue of the zang-fu organs.)
(Middle Category of the *Shennong Bencao Jing*)
[Flavor and Nature] Pungent, neutral, non-toxic.
[Indications] Primarily treats pathogenic qi within the five zang organs, dissipates toxic heat spreading through the skin and joints, expels three types of intestinal parasites, and resolves food stagnation.
[Verification] States: Originates from mountain valleys in Jin, as well as Goryeo, Taiyuan, Hedong, Hexi, Yanzhou, and Tongzhou. It is also found in nearby regions. It grows in mountains, resembling an elm but smaller, with round and dense leaves. Its fruit matures early and resembles elms seeds (elm samaras), but it has a musky odor. When made into sauce, it becomes fragrant and delicious. It can kill insects and prevent moth damage when placed among items. There are two sizes: small Elaeagnus angustifolia (Wuyi) is used for fermenting sauces and has a particularly pungent flavor; large Elaeagnus angustifolia is suitable for medicinal use, with aged specimens being the best.
[Invention] States: Wuyi has a musky odor and is the seed of wild elm. Harvesting elm and willow fire in spring refers to using them when other trees first show green, to initiate the beginning of spring growth. It enters the Liver channel to promote the functional activity of the Liver, thus treating pathogenic qi within the five internal organs and toxic heat spreading through the skin and joints. This action is distinct from simple spring-like dispersal. Wuyi promotes and initiates trends, moving from below to above, causing pathogens that entered from the exterior to return to the interior and then exit outward. Wind entering leads to parasite generation; wind dispersal leads to parasite elimination. If grain intake cannot be transformed and dispersed, how could it open the Upper Jiao, disseminate the flavors of the five grains, steam the skin, fill the body, and moisten the hair like mist and dew? Therefore, it not only transforms and disperses grain flavors but also disseminates fluid metabolism.