（唐本草）
震苏苏震行无眚，方其义也义以方外直方，大不习无不利。
【气味】甘咸平，无毒。
【主治】主破血。产后血胀，闷绝欲死者，水煮五两，取浓汁服。
【核】曰∶出南海、昆仑。树似青槐，材似赤降，中心有横纹似紫角者，号木中尊，功
力倍尝百倍也。修事去粗皮，并节，锉极细，梅枝捣烂，同拌蒸之，从巳至申，阴干用，用
染绛色，见铁器，则色黯不鲜。
先人云∶苏有疏畅义；方有不动义，具厥阴风木之才，非分崩离坼之比。
【 】曰∶死而更生曰苏；赋形有尝曰方；东方之行曰木。木以色胜，当判入肝，肝之
心药，肝之血分气药也。肝主色，自入为青，入心为赤，肝藏血，心藏血脉之气也。故主血
中诸眚，闷绝欲死者，功能屠绝鬼气，苏醒人魂，一名屠苏者以此。
（唐本草）
【气味】苦温，无毒。
【主治】主疮疥，风疸，疳 ，煮汁饮之，樗木根叶尤良。
【核】曰∶椿、樗二树，南北皆有，形并相似。但椿木皮细，肌实而赤，嫩叶香甘可茹；
樗木皮粗，肌疏而白，茎叶臭恶不可茹。二三月木端作叶，嫩红，老绿。有花无荚者椿；有
荚无花者樗。干枝端直者椿；迂矮者樗。庄周所谓“其木拥肿，不中绳墨，其枝拳曲，不中
规矩”者樗也。秋深落叶，脱处有痕如虎眼。樗有小毒，椿叶无之。修事椿根，以不近西头
者
为上。采出，拌生葱蒸半日，锉细，盛桂屋角南畔，阴干用。
【 】曰∶椿樗同种，材臭异形者，牝牡有别耳。樗孕荚者牝，椿无荚者牡，故椿体木
性之直，樗体木性之曲，曲直仆伛，木体之全性现矣。故始区芽 ，直拆者萌，曲生者句，
枝干已成，曲直仆伛，四体始备，直无仆伛，曲则兼有，是以椿木体直，精专枝叶，樗木体
曲，精专根皮，诚肝木之体用药也。椿益皮肤毛发，正肝以能生为体，荣华为用；樗益血气
阴窍，正肝以藏血为体，疏泄为用。内而肠风已，崩带除，滞痢行，癃闭利，遗浊清，神安
志悦；外而疮疡净，斑疹消，丁毒解，好颜媚色，以及四体百骸，不言而喻。至若疳 蛊毒，
传尸鬼注，而与物为春，杀厉之气，暖然齐春仁之洁，椿樗之为用溥矣。
（《唐本草》记载）
震卦象征苏苏震动而行，没有灾祸，这是阐述其义理：以方正之道行事，即使不常练习也没有不利。
【气味】味甘、咸，性平，无毒。
【主治】主治破血。产后血胀，胸闷气绝欲死者，用水煮五两，取浓汁服用。
【考证】曰：产于南海、昆仑。树形像青槐，木材像赤降木，中心有横纹像紫角者，号称“木中尊”，功效比寻常药材百倍。炮制时去掉粗皮和节，锉成极细末，用梅枝捣烂，一同拌蒸，从巳时到申时，阴干后使用。用于染绛色，遇到铁器，颜色就会变暗不鲜艳。
先父说：苏有疏畅之义；方有不动之义，具备厥阴风木的才质，不是分崩离析的那种。
【按语】曰：死而复活叫苏；赋予形态有常规叫方；东方的行运叫木。木以颜色取胜，应当判定归属于肝，是肝的心药，也是肝的血分气药。肝主颜色，青色自入为肝色，红色入心为心色，肝藏血，心藏血脉之气。所以主治血中各种病症，胸闷气绝欲死者，功能能屠绝鬼气，苏醒人魂，一名“屠苏”就是由此而来。
（《唐本草》记载）
【气味】味苦，性温，无毒。
【主治】主治疮疥，风疸，疳积，煮汁饮用，樗木的根叶尤其好。
【考证】曰：椿、樗两种树，南北都有，形状都相似。只是椿树皮细，肉质坚实而红，嫩叶香甘可食用；樗树皮粗，肉质疏松而白，茎叶臭恶不可食用。二三月树木顶端长出新叶，嫩红，老绿。有花无荚的是椿；有荚无花的是樗。树干枝条端直的是椿；迂回矮小的是樗。庄子所说的“它的木头臃肿，不合绳墨，它的树枝拳曲，不合规矩”的就是樗。深秋落叶，脱落处有痕迹像虎眼。樗有小毒，椿叶没有。炮制椿根，以不靠近西头的为上品。采出后，拌生葱蒸半天，锉细，盛放在桂屋角的南畔，阴干后使用。
【按语】曰：椿樗同种，材质臭味不同是因为雌雄有别。樗孕育荚果的是雌性，椿没有荚果的是雄性，所以椿体现木性的直，樗体现木性的曲，曲直俯仰佝偻，木体的全性就显现了。所以开始区分芽苞，直着拆开的是萌，弯曲生长的是句，枝干已成，曲直俯仰佝偻，四肢才完备，直没有俯仰佝偻，弯曲则兼有，因此椿木体直，精华专于枝叶，樗木体曲，精华专于根皮，确实是肝木之体的用药。椿益皮肤毛发，正是以肝的生发为体，荣华秀发为用；樗益血气阴窍，正是以肝的藏血为体，疏泄为用。对内能治愈肠风，消除崩漏带下，通导滞痢，利小便，清遗浊，神安志悦；对外能净化疮疡，消退斑疹，解丁毒，美化容颜，以及四肢百骸，不言而喻。至于疳积蛊毒，传尸鬼注，与万物一起如春天般生机盎然，杀灭厉气的力量，温暖地如同春仁之洁净，椿樗的作用很广博了。
(From *Tang Bencao*)
The Zhen hexagram symbolizes vigorous movement without disaster, illustrating its principle: acting with uprightness, even without frequent practice, brings no disadvantage.
[Flavor and Nature] Sweet and salty, neutral in nature, non-toxic.
[Indications] Primarily used to break blood stasis. For postpartum abdominal distension due to blood accumulation, leading to suffocation and near-death state, boil five liang in water, take the concentrated decoction orally.
[Verification] It is said: Originates from Nanhai and Kunlun. The tree resembles the black locust (Qinghuai), the wood resembles Chi Jiang wood, and those with transverse grain resembling purple horn are called "Noblest among Woods," with efficacy a hundred times greater than ordinary herbs. Processing involves removing the rough bark and nodes, grinding into fine powder, mixing with mashed plum branches, steaming from Si hour to Shen hour, then drying in shade for use. When used for dyeing crimson, contact with ironware causes the color to darken and lose brightness.
My late father said: "Su" implies unblocking and smoothing; "Fang" implies immobility/stability. It possesses the talent of Jueyin Wind-Wood, unlike those that crumble and fall apart.
[Commentary] It is said: Reviving from death is "Su"; endowing form with regularity is "Fang"; the direction of the East is "Wood". Wood is distinguished by color, thus it should be classified under the Liver. It serves as a heart medicine for the Liver, and a Qi-moving medicine for the Liver's Blood aspect. The Liver governs color; green enters as the Liver's color, red enters as the Heart's color. The Liver stores Blood, while the Heart stores the Qi of the Blood vessels. Therefore, it treats various ailments within the Blood, such as suffocation and near-death states. Its function is to slaughter ghostly qi and revive human soul. One of its names, Tusu, derives from this.
(From *Tang Bencao*)
[Flavor and Nature] Bitter, warm in nature, non-toxic.
[Indications] Primarily treats sores, scabies, wind-jaundice, and childhood malnutrition (Gan syndrome). Drink the boiled juice; the roots and leaves of the Toosendan tree (Chubai) are particularly effective.
[Verification] It is said: Both Chun (Toona) and Chu (Melia) trees grow in the north and south, and their shapes are similar. However, Chun bark is fine, flesh is solid and red, and tender leaves are fragrant, sweet, and edible; Chu bark is coarse, flesh is loose and white, and stems/leaves are foul-smelling and inedible. In February and March, new leaves appear at the tree tips, tender red turning old green. Chun has flowers but no pods; Chu has pods but no flowers. Chun has straight trunks and branches; Chu is crooked and short. Zhuangzi described Chu as "its wood is knotty and unfit for carpentry lines, its branches twisted and unfit for compasses." In late autumn, when leaves fall, the shedding spots resemble tiger eyes. Chu has slight toxicity, whereas Chun leaves do not. For processing Chun root, specimens not facing west are considered superior. After harvesting, mix with raw green onions, steam for half a day, grind finely, store in the southeast corner of a cassia house, and dry in shade for use.
[Commentary] It is said: Chun and Chu are of the same species, differing in odor and form due to sexual dimorphism. Chu bearing pods is female (Pin); Chun lacking pods is male (Mu). Thus, Chun embodies the straightness of Wood nature, while Chu embodies the curvature of Wood nature. Curvature, straightness, prostration, and stooping reveal the complete nature of the Wood body. Initially distinguishing buds, those splitting straight are "Meng" (sprouting), those growing curved are "Gou" (curved). Once branches and trunks form, showing curvature, straightness, prostration, and stooping, the four limbs are complete. Straightness lacks prostration/stooping, while curvature includes both. Therefore, Chun wood is straight, concentrating essence in branches and leaves; Chu wood is curved, concentrating essence in roots and bark. Indeed, these are medicines corresponding to the physical nature of Liver-Wood. Chun benefits skin and hair, embodying the Liver's generating function as substance and flourishing appearance as application; Chu benefits blood, Qi, and yin orifices, embodying the Liver's storing of blood as substance and dredging/discharging as application. Internally, it stops intestinal wind, eliminates metrorrhagia and leukorrhea, moves stagnant dysentery, promotes urination in strangury, clears turbid discharge, calms the spirit, and gladdens the will. Externally, it cleanses sores, resolves macules and papules, dissolves carbuncles, beautifies complexion, and benefits all four limbs and bones, which needs no further explanation. Regarding childhood malnutrition, gu poison, corpse-transmitting ghost infiltration, and other diseases, it acts like spring bringing life to all things. Its ability to kill pathogenic qi is warm and pure like spring seeds. The utility of Chun and Chu is indeed extensive.