苗高四五尺，春亦为蔬，秋深结角。其子生角中，如羊肾。今湖南北人家园圃所种
甚多，或在村野成段种。《蜀本·图经》言∶叶似苜蓿而阔大，甚为允当。
今出川中。大块，其里色白，不油色，嚼之微辛甘者佳。他种不入药，只可为末，煎
汤沐浴。此药今人所用最多，头面风不可阙也，然须以他药佐之。沈括云∶予一族子，旧服
芎，医郑叔熊见之云∶芎 不可久服，多令人暴死。后族子果无疾而卒。又朝士张子通之
妻病脑风，服芎 甚久，亦一旦暴亡。皆目见者。此盖单服耳，若单服既久，则走散真气。
既使他药佐使，又不久服，中病便已，则何能至此也。
今华州之西至秦州皆有之。方红熟时采得，蒸烂，研，滤汁，去子，熬成稀膏。量
酸甘入蜜，再火上，待蜜熟，俟冷，器中贮，作汤。肺虚寒人，可化为汤，时时服。作果，
可以寄远。《本经》言温，今食之多致虚热，小儿益甚。《药性论》以谓除热气。《日华子
》又谓暖水脏，又曰除烦热。后学至此多惑。今既用之治肺虚寒，则更不取除烦热之说。则
下药亦用之。入药生曝，不去子。
旋花蔓生，今之河北、京西、关陕田野中甚多，最难锄艾，治之又生。世又谓之鼓子
花，言其形肖也。四五月开花，亦有多叶者。其根寸截，置土下，频灌溉，方涉旬，苗已生
。《蜀本·图经》是矣。
植株高度四五尺，春季时嫩苗也可作为蔬菜食用，深秋时节结出豆荚。种子生长在豆荚中，形状像羊肾。如今湖南、湖北地区的农家在园圃中种植很多，有的在乡村野外成片种植。《蜀本·图经》中说：叶子像苜蓿但更宽大，这种描述非常恰当。
现在产自四川地区。块根大的，内部颜色白，不油腻，咀嚼起来微辛甘的为上品。其他品种不入药，只能磨成粉，煎汤沐浴。此药如今人们使用最多，治疗头面部风邪不可缺少的药物，但必须配合其他药物辅助使用。沈括说：我有一位族弟，长期服用川芎（Xiongqiao, 川芎），医生郑叔熊见到后说：川芎不可久服，多会让人突然死亡。后来这位族弟果然在无病的情况下猝死。又有朝士张子通的妻子患脑风病，长期服用川芎，也有一天突然死亡。这些都是亲眼所见。这大概是单味药服用的缘故，如果单味药久服，就会耗散真气。如果有其他药物佐使，又不长期服用，病愈就停药，怎么会到这种地步呢。
现在华州以西到秦州都有出产。在果实红熟时采收，蒸烂，研磨，过滤汁液，去掉种子，熬制成稀膏。根据酸甘程度加入蜂蜜，再次上火加热，待蜜炼熟，冷却后装入容器中储存，做成汤剂。肺虚寒的人，可以将其化为汤剂，经常服用。做成果脯，可以寄送给远方亲友。《神农本草经》说它性温，现在吃多了容易导致虚热，小儿更为严重。《药性论》认为它能清除热气。《日华子本草》又说它能温暖水脏（肾与膀胱），还说能清除烦热。后世学者到这里大多感到困惑。既然现在用它来治疗肺虚寒，就不再采纳清除烦热的说法。那么下药也使用它。入药时生晒，不去掉种子。
旋花蔓生，如今河北、京西、关陕田野中非常多，最难锄草除草，治理后又重新生长。世人又称之为鼓子花，形容其形状相似。四五月开花，也有多叶的品种。其根切成寸段，埋在土下，频繁灌溉，才过十天，幼苗就已生出。《蜀本·图经》的说法是正确的。
The plant grows to a height of four or five chi. In spring, the tender shoots can be used as vegetables; in late autumn, it produces pods. The seeds grow inside the pods and resemble sheep kidneys. Currently, many households in Hunan and Hubei cultivate them in their gardens, while some are planted in large patches in rural areas. *Shu Ben Tu Jing* (Illustrated Materia Medica of Shu) states: "The leaves resemble those of alfalfa but are broader," which is an accurate description.
It is now produced in Sichuan. Those with large tubers, white interior color, non-greasy texture, and a slightly pungent and sweet taste when chewed are considered superior. Other varieties are not used in medicine and can only be ground into powder for bathing decoctions. This herb is currently the most widely used by people; it is indispensable for treating wind affecting the head and face, but must be accompanied by other herbs. Shen Kuo said: "A cousin of mine used to take Xiongxiong (Ligusticum chuanxiong, Chuanxiong). Physician Zheng Shuxiong saw him and said: 'Chuanxiong should not be taken for a long time; excessive use may cause sudden death.' Later, this cousin indeed died suddenly without prior illness. Also, the wife of court official Zhang Zitong suffered from brain wind and took Chuanxiong for a long time, eventually dying suddenly one day. These were witnessed personally." This is likely due to single-herb usage. If taken alone for a long time, it disperses true qi. However, if accompanied by other guiding herbs and not taken for a long period, stopping once the disease is cured, how could such outcomes occur?
It is found everywhere from west of Huazhou to Qinzhou. Harvest when the fruit turns red and ripe, steam until soft, grind, filter the juice, remove the seeds, and boil down to a thin paste. Add honey according to the degree of sourness and sweetness, heat again over fire until the honey is refined, cool, store in vessels, and prepare as a decoction. For individuals with lung deficiency-cold, it can be converted into a decoction and taken frequently. It can also be made into candied fruit to send to distant relatives. *Ben Jing* (Shennong's Classic of Materia Medica) states it is warm in nature. Currently, excessive consumption often leads to deficiency-heat, especially in children. *Yao Xing Lun* (Treatise on Medicinal Properties) claims it clears heat. *Rihua Zi Bencao* (Materia Medica of Rihua Zi) further states it warms the water-zang (kidneys and bladder) and clears vexatious heat. Scholars at this point are often confused. Since it is now used to treat lung deficiency-cold, the claim of clearing vexatious heat is no longer adopted. Thus, even lower-grade preparations use it. For medicinal use, sun-dry raw without removing seeds.
Convolvulus vines grow sprawlingly and are very common in fields of Hebei, Jingxi, Guan-Shaan regions today. They are difficult to weed and control, regenerating quickly after treatment. People also call it Guzihua (Drum Flower), referring to its shape resembling a drum. It flowers in April and May, and there are varieties with multiple leaves. Cut the roots into inch-long segments, bury them in soil, irrigate frequently, and within ten days, seedlings will emerge. The statement in *Shu Ben Tu Jing* is correct.