\r白杨树皮\pd363.bmp\r
味苦，无毒。主毒风香港脚肿，四肢缓弱不随，毒瓦斯游易（音翼）在皮肤中，痰癖等
酒渍服之。
取叶圆大，蒂小，无风自动者。今按陈藏器本草云∶白杨去风痹宿血，折伤，血
沥在骨肉间，痛不可忍，及
皮肤风瘙肿，杂五木为汤，捋浸损处。北土极多，人种墟墓间，树大皮白。或云叶无风自动，
此是 （音移）杨，非白杨
也。（唐本先附）臣禹锡等谨按日华子云∶味酸
筋骨。非寻常杨、柳并松杨树，叶如梨者是也。
图经曰∶白杨，旧不载所出州土，今处处有之，北土尤多，人种于墟墓间。株大叶圆如
梨，皮白，木似杨，故名白
杨。采其皮无时。此下又有水杨条，《经》云∶叶圆阔而赤，枝条短梗，多生水岸旁，其形
如杨柳相似，以生水岸，故名
水杨。《尔雅》所谓旄，泽柳。其云生水旁，形如杨柳，即今蒲杨是也。杨柳之类亦多。崔
豹《古今注》曰∶白杨叶圆，
青杨叶长，柳叶亦长细， （时题切）杨圆叶弱蒂，微风则大摇。一名高飞，一曰独摇。蒲
柳生水边，叶似青杨，亦曰蒲
杨；亦日 柳；亦曰蒲 焉。水杨即蒲杨也。枝茎劲韧（音刃）作矢用。又有
赤，材理亦赤也。然今人鲜能
分别之，余并见柳华条。《必效方》疗腹满癖
护风细锉五升，熬令黄，以
酒五升淋讫，即以绢袋盛滓，还纳酒中，密封再宿。每服一合，日三。
雷公云∶凡使，以铜刀刮粗皮，蒸，从巳至未出。用布袋盛，于屋东挂干用。外台秘要
治口吻疮。以嫩枝于铁上烧
作灰，脂敷之。千金方∶治妊娠下痢。白杨皮一斤，水一斗，煮取二升
治牙疼，白杨皮醋煎含之。
孙真人主口疮。以白杨枝，浆水煎，和盐含之。
衍义曰∶白杨，陕西甚多，永、耀间居人修盖，多此木也。然易生根，斫木时碎札入土
即下根，故易以繁植，非止
墟墓间，于人家舍前后及夹道，往往植之，土地所宜尔。风才至，叶如
又谓无风自动，则无此事。
尝官永、耀间，熟见之。但风微时，当风迳者，其叶孤绝处，则往往独摇，以其蒂细长，叶
重大，微风虽过故往来卒已
时，势使然也
白杨树皮
味苦，无毒。主治毒风引起的香港脚肿胀，四肢弛缓软弱不能随意运动，毒邪之气游走于皮肤之中，以及痰癖等症。用酒浸泡后服用。
选取叶片圆大、叶柄小、无风时能自动摇动的叶子。现在考证陈藏器的《本草》记载说：白杨能祛除风痹和陈旧瘀血，治疗折伤，若血液渗沥在骨肉之间，疼痛难以忍受，以及皮肤风疹瘙痒肿胀，可配合五种树木煎汤，擦洗浸泡患处。北方土地非常多见，人们常种植在坟墓间，树干高大，树皮白色。有人说叶子无风自动，这其实是（音移）杨，不是白杨。（唐本先附）臣禹锡等人谨按日华子的说法：味酸，作用于筋骨。这不是普通的杨树、柳树或松树，而是叶子像梨树的那种。
《图经》记载：白杨，旧籍未记载其产地，如今到处都有，北方尤其多，人们种在坟墓间。树干大，叶片圆如梨形，树皮白，木质似杨，所以叫白杨。采集树皮没有固定时间。此下又有水杨条目，《经》云：叶片圆阔且带红色，枝条短梗，多生长在水岸边，形状像杨柳相似，因为生长在水岸，所以名叫水杨。《尔雅》所说的“旄”，即泽柳。文中说生长在水旁，形状像杨柳，就是现在的蒲杨。杨柳这类树也很多。崔豹《古今注》说：白杨叶圆，青杨叶长，柳叶也长而细，（时题切）杨叶圆而叶柄弱，微风中则大幅摇动。又名高飞，一说独摇。蒲柳生长在水边，叶似青杨，也称蒲杨；也称柳；也称蒲焉。水杨即蒲杨。枝茎坚韧（音刃），可做箭杆使用。又有赤杨，木材纹理也是红色的。然而如今人们很少能区分它们，我都在柳华条中见过。《必效方》治疗腹满癖积：取护风木细锉五升，炒至黄色，用酒五升淋浇，然后用绢袋盛装药渣，放回酒中，密封放置两夜。每次服用一合，每日三次。
雷公说：凡使用，用铜刀刮去粗皮，蒸制，从巳时至未时取出。用布袋盛装，挂在房屋东面晾干使用。《外台秘要》治疗口吻疮：用嫩枝在铁上烧成灰，涂敷油脂。《千金方》：治疗妊娠下痢。白杨皮一斤，水一斗，煮取二升。治疗牙疼，用白杨皮醋煎含漱。
孙真人主治口疮：用白杨枝，浆水煎煮，加盐含漱。
《衍义》说：白杨，陕西很多，永、耀之间的居民建房盖屋，多用这种木头。但它容易生根，砍伐树木时碎屑落入土中就能生根，所以容易繁殖，不仅限于坟墓间，在人家房舍前后及夹道两旁，往往也种植它，这是土地适宜生长的缘故。风才吹到，叶子就像……又说无风自动，则没有这件事。我曾任职于永、耀之间，熟悉见到过。只是风微小时，迎风直吹的地方，那些叶子孤立绝处，往往独自摇动，因为其叶柄细长，叶片重大，微风经过时，形势使然。
Bark of Populus alba (Baishang Yupi)
Taste: Bitter. Nature: Non-toxic. Indications: Mainly treats toxic wind causing Hongjiao (gouty swelling), flaccidity and weakness of the four limbs with loss of voluntary movement, toxic vapors wandering in the skin, and phlegm masses (Tanpi). Administered after soaking in wine.
Select leaves that are round and large, with a small petiole, and which move without wind. Currently, according to Chen Cangqi's *Bencao*: Baishang removes wind-bi and old blood, treats fractures/trauma, and blood exuding between bone and flesh causing unbearable pain, as well as skin wind-rash and swelling. It can be mixed with five types of wood to decoct for bathing or compressing the affected area. It is very common in the northern regions; people plant it among graves. The trees are large with white bark. Some say the leaves move without wind; this is actually Yi Yang (Yiyang), not Baishang. (Attached from Tang Benxian) Minister Yuxi et al. respectfully note: Rihua Zi states: Taste sour, acts on sinews and bones. This is not the ordinary Yang (Poplar), Liu (Willow), or Song (Pine); it refers to the one with leaves like pear trees.
*Tu Jing* records: Baishang, its origin province was not recorded in old texts; now it is found everywhere, especially in the north, planted among graves. The trunk is large, leaves round like pears, bark white, wood similar to Poplar, hence named Baishang. Bark can be harvested at any time. Below is another entry for Shuiyang (Water Poplar): *Jing* says: Leaves are round, broad, and reddish; branches have short pedicels; mostly grows by water banks; shape resembles Willow, hence named Shuiyang. What *Erya* calls "Mao" is Zeli (Marsh Willow). The text mentions growing by water, shape like Willow, which is now Puyang. There are many varieties of Yang and Liu. Cui Bao's *Gujin Zhu* states: Baishang leaves are round; Qingyang leaves are long; Liu leaves are also long and fine; Tiyang has round leaves and weak petioles, shaking greatly in breeze. Also known as Gaofei, or Duyao. Puliu grows by water, leaves resemble Qingyang, also called Puyang; also called Liu; also called Pu Yan. Shuiyang is Puyang. Branches and stems are tough (Ren), used for arrows. There is also Chiyang (Red Poplar), whose wood grain is also red. However, people nowadays rarely distinguish them; I have seen them all in the Liuhua (Willow Flower) entry. *Bixiao Fang* treats abdominal fullness and masses: Take Hufeng wood, finely cut 5 sheng, stir-fry until yellow, pour 5 sheng of wine over it, then place the dregs in a silk bag and return to the wine, seal tightly and leave for two nights. Take 1 he per dose, three times daily.
Leigong says: When using, scrape off the rough bark with a copper knife, steam from Si hour to Wei hour. Store in a cloth bag, hang to dry on the east side of the house. *Waitai Miyao* treats mouth corner sores: Burn tender branches on iron until ash, apply grease. *Qianjin Fang*: Treats dysentery during pregnancy. Baishang bark 1 jin, water 1 dou, decoct to obtain 2 sheng. For toothache, decoct Baishang bark in vinegar and hold in mouth.
Sun Taoren mainly treats mouth ulcers: Use Baishang branches, decoct in Jiangshui (fermented rice wash water), add salt and hold in mouth.
*Yanyi* states: Baishang is very common in Shaanxi; residents in Yong and Yao areas use this wood for building houses. However, it roots easily; when chopping the tree, fragments entering the soil will take root, making it easy to propagate. Not only in graveyards, but often planted in front and back of houses and along paths, simply because the land suits it. When wind blows, leaves... Some say they move without wind, but this does not happen. I served in Yong and Yao areas and saw them familiarly. Only when the wind is slight, in places directly exposed to the wind, the isolated leaves often shake alone, because their petioles are long and thin, and leaves are heavy; the momentum causes this when a breeze passes.