（宋《开宝》）
【释名】刺桐。
曰∶生南海山谷中，树似桐而皮黄白色，有刺，故以名之。
【集解】颂曰∶海桐生南海及雷州，近海州郡亦有之。叶大如手，作三花尖。皮若梓白
皮，而坚韧可作绳，入水不烂。不拘时月采之。又云∶岭南有刺桐，叶如梧桐。其花附干而
生，侧敷如掌，形若金凤，枝干有刺，花色深红。江南有
时珍曰∶海桐皮有巨刺，如鼋甲之刺，或云即刺桐皮也。按∶嵇含《南方草木状》云∶
九真有刺桐，布叶繁密。三月开花，赤色照映，三、五房凋，则三、五复发。陈翥《桐谱》
云∶刺桐生山谷中。
纹理细紧，而性喜拆裂。体有巨刺，如 树。其叶如枫。 桐身青，叶圆大而长。高三、
四尺，便有花成
木皮
【气味】苦，平，无毒。大明曰∶温。
【主治】霍乱中恶，赤白久痢，除疳 疥癣，牙齿虫痛，并煮服及含之。水浸洗目，除
肤赤（《开宝》）。主腰脚不遂，血脉顽痹，腿膝疼
洗赤目（时珍）。
【发明】颂曰∶古方多用浸酒治风蹶。
南唐筠州刺史王绍颜撰《续传信方》云∶顷年予在姑孰，得腰膝痛不可忍。医以肾脏风
毒攻刺诸药莫疗。因览刘禹锡《传信方》备有此验。修服一剂，便减五分。其方用海桐皮二
两，牛
净洗焙干
晚各一次，长令醺醺。此方不得添减，禁毒食。
分，及去风杀虫。
【附方】新三。
风癣有虫∶海桐皮、蛇床子等分，为末。以腊猪脂调，搽之。（艾元英《如宜方》）
风虫牙痛∶海桐皮煎水，漱之。（《圣惠方》）。
中恶霍乱∶海桐皮，煮汁服之。（《圣济总录》）
刺桐花
【主治】止金疮血，殊效（苏颂）。
【附录】鸡桐 时珍曰∶生岭南山间。其叶如楝。用叶煮汤，洗渫足
【宋《开宝本草》】
【释名】刺桐。
李时珍说：生长在南海山谷中，树形像梧桐但树皮呈黄白色，有刺，因此得名。
【集解】苏颂说：海桐生长于南海及雷州地区，靠近海的州郡也有分布。叶子大如手掌，花尖分为三瓣。树皮像梓白皮一样，坚韧可用来做绳子，入水不烂。随时可以采集。又说：岭南有刺桐，叶子像梧桐。其花贴着树干生长，侧面展开如手掌，形状像金凤，枝干有刺，花色深红。江南有时……
李时珍说：海桐皮有大刺，像鳖甲上的刺，有人说就是刺桐的皮。据嵇含《南方草木状》记载：九真有刺桐，枝叶繁密。三月开花，红色耀眼，三、五朵花凋谢后，又会再发三、五朵。陈翥《桐谱》记载：刺桐生长在山谷中。纹理细紧，性喜开裂。体有大刺，像……树。其叶像枫树。桐身青色，叶圆大而长。高三四尺，就有花成木皮……
【气味】苦，平，无毒。唐慎微《证类本草》（大明）说：温。
【主治】霍乱中恶，赤白久痢，除疳积、疥癣，牙齿虫痛，均煮服或含漱。用水浸泡洗眼，除肤赤（《开宝本草》）。主腰脚不遂，血脉顽痹，腿膝疼……洗赤目（李时珍）。
【发明】苏颂说：古方多用浸酒治风蹶。
南唐筠州刺史王绍颜撰《续传信方》记载：近年我在姑孰，得腰膝痛不可忍。医生用治肾脏风毒攻刺诸药莫疗。因览刘禹锡《传信方》备有此验。修服一剂，便减五分。此方用海桐皮二两，牛……净洗焙干。晚各一次，长令醺醺。此方不得添减，禁毒食。分，及去风杀虫。
【附方】新三。
风癣有虫：海桐皮、蛇床子等分，为末。以腊猪脂调，搽之。（艾元英《如宜方》）
风虫牙痛：海桐皮煎水，漱之。（《圣惠方》）。
中恶霍乱：海桐皮，煮汁服之。（《圣济总录》）
刺桐花
【主治】止金疮血，殊效（苏颂）。
【附录】鸡桐 李时珍说：生岭南山间。其叶如楝。用叶煮汤，洗渫足
[Song Dynasty "Kaibao Bencao"]
[Names] Citron Tree (Cìtóng).
Li Shizhen states: It grows in the valleys of the South Sea. The tree resembles the Paulownia but has yellowish-white bark and thorns, hence its name.
[Collection and Explanation] Su Song states: Haitongpi grows in the South Sea and Leizhou area, and is also found in coastal prefectures. The leaves are as large as a hand, with three flower tips. The bark resembles that of Catalpa alba, is tough enough to be made into ropes, and does not rot when submerged in water. It can be harvested at any time. It is also said that in Lingnan there is a Thorny Citron (Cìtóng) with leaves like the Wutong tree. Its flowers grow attached to the trunk, spreading sideways like a palm, shaped like a golden phoenix, with thorny branches and deep red flowers. In Jiangnan, sometimes...
Li Shizhen states: Haitongpi has large thorns, similar to those on a turtle shell; some say it is the bark of the Thorny Citron. According to Ji Han's "Southern Flora" (Nanfang Caomu Zhuang): There is a Thorny Citron in Jiuzhen with dense foliage. It blooms in March, shining red; after three or five clusters fade, another three or five will bloom again. Chen Zhu's "Paulownia Manual" (Tongpu) records: The Thorny Citron grows in valleys. Its texture is fine and tight, and it tends to split. It has large thorns, resembling... trees. Its leaves are like maple leaves. The trunk is green, with round, large, and long leaves. When it reaches three or four feet in height, flowers form... wood bark...
[Properties and Flavor] Bitter, neutral, non-toxic. Tang Shenwei (Daming) states: Warm.
[Indications] Cholera with sudden evil invasion, chronic dysentery with blood and mucus, removal of malnutrition (Gan accumulation), scabies, and tinea; toothache caused by worms. All should be decocted for oral administration or used for mouth rinsing. Soaked in water and washed over the eyes to remove skin redness ("Kaibao Bencao"). Mainly treats inability to move waist and legs, stubborn obstruction of blood vessels, and pain in the legs and knees... washes red eyes (Li Shizhen).
[Elucidation] Su Song states: Ancient formulas often use wine infusion to treat wind-induced collapse.
Wang Shaoyan, Prefect of Yinzhou during the Southern Tang dynasty, compiled "Continued Chuanxin Fang": In recent years, I was in Gushu and suffered from unbearable waist and knee pain. Physicians used various drugs for kidney wind-toxin attacks without success. Upon reviewing Liu Yuxi's "Chuanxin Fang", this case was fully recorded. After taking one dose, my condition improved by five parts. This formula uses two liang of Haitongpi, Ox... cleaned and dried. Taken once in the evening, keeping one slightly intoxicated. This formula must not be altered; strictly avoid toxic foods. Parts, and expel wind and kill parasites.
[Attached Formulas] Three new ones.
Wind tinea with parasites: Equal parts of Haitongpi and Cnidium fruit (Shechuangzi), ground into powder. Mixed with rendered lard from winter pigs, apply externally. (Ai Yuan Ying "Ruyi Fang")
Wind-worm toothache: Decoct Haitongpi in water and rinse. ("Shenghui Fang").
Sudden evil cholera: Decoct Haitongpi and take the juice. ("Shengji Zonglu")
Thorny Citron Flower
[Indications] Stops bleeding from metal wounds, with remarkable effect (Su Song).
[Appendix] Jitong Li Shizhen states: Grows in the mountains of Lingnan. Its leaves resemble those of the Chinaberry tree. Boil the leaves in water and wash the feet.