\r羊踯躅\ph242-1.bmp\r，生太行山川谷及淮南山，今所在有之。春生苗，似鹿葱；
叶似红花；茎高三、四尺
；夏开花，似凌霄、山石榴、旋复辈，而正黄色；羊误食其叶，则踯躅而死，故以为名。三
月、四月采花阴干。今岭南蜀道山谷遍生，皆深红色，如锦绣然。或云此种不入药。古大方
多用踯躅，如胡洽治时行赤散，及治五嗽四满丸之类，及治风诸酒方，皆杂用之。又治百
病风湿等，鲁王酒中亦用踯躅花。今医方捋脚汤中多用之。南方治蛊毒下血，有踯躅花散甚
胜。
\r茵芋\ph243.bmp\r，出泰山川谷，今雍州、绛州、华州、杭州亦有之。春生苗，高
三、四尺，茎赤；叶似
石榴而短浓，又似石南叶；四月开细白花，五月结实；三月、四月、七月采叶连细茎，阴干
用，或云日干。胡洽治贼风，手足枯痹，四肢拘挛。茵芋酒主之。其方茵芋、附子、天雄、
乌头，秦艽、女萎、防风、防己、踯躅、石南、细辛、桂心各一两，凡十二味，切，以绢袋
盛，清酒一斗渍之，冬七日，夏三日，春秋五日，药成。初服一合，日三。渐增之，以微痹
为度。
Aconitum carmichaelii (Wutou, 乌头), see the entry for Cezi (Side Aconite Root) below.
Tianxiong (Heavenly Male Aconite), see the entry for Cezi (Side Aconite Root) below.
Fuzi (Lateral Root of Aconite), see the entry for Cezi (Side Aconite Root) below.
Rhododendron molle (Yangzhizhu, 羊踯躅), grows in the valleys of the Taihang Mountains and the Huai Mountains; it is now found everywhere. In spring, shoots emerge resembling Luchong (Crinum asiaticum); leaves resemble Honghua (Safflower flowers); stems are three to four chi high. Flowers bloom in summer, resembling Lingxiao (Campsis grandiflora), Shanshiliu (Pomegranate flower), and Xuanfu (Inula japonica), but with a pure yellow color. If sheep accidentally eat its leaves, they wander aimlessly until death, hence the name "Yangzhizhu" (Goat's Hesitation). Collect flowers in March and April, dry in shade. Now, deep red varieties grow abundantly in the valleys of Lingnan and Shu roads, looking like brocade. Some say this variety is not used in medicine. Ancient major formulas often used Yangzhizhu, such as Huguazhi's Chisan for epidemic fevers, Wusou Siman Wan for five coughs and four fullnesses, and various wines for treating wind syndromes, all mixed with it. Also, for treating rheumatism from wind-dampness in hundred diseases, Lu Wang Jiu also uses Yangzhizhu flowers. Currently, many prescriptions use it in Luojiao Tang (Foot-Soaking Decoction). In the south, Zhi Zhu Hua San (Rhododendron Flower Powder) is very effective for treating gu poison (parasitic disease) and bloody stool.
Skimmia reevesiana (Yinyu, 茵芋), originates from the valleys of Mount Tai; it is now also found in Yongzhou, Jiangzhou, Huazhou, and Hangzhou. In spring, shoots emerge, three to four chi high, with red stems. Leaves resemble pomegranate leaves but are shorter and thicker, and also similar to Shinan (Pyrrosia lingua) leaves. Small white flowers bloom in April; fruits form in May. Collect leaves with thin stems in March, April, and July, dry in shade for use, or some say sun-dry. Huguazhi treats Zeifeng (Thief Wind, external wind pathogen causing numbness and pain), resulting in withered limbs and spasms. Yinyu Jiu (Yinyu Wine) is indicated. The formula consists of Yinyu, Fuzi, Tianxiong, Wutou, Qinjiao (Gentiana macrophylla), Nuwei (Polygonatum odoratum root), Fangfeng (Saposhnikovia divaricata), Fangji (Stephania tetrandra), Yangzhizhu, Shinan, Xixin (Asarum), and Guixin (Cinnamon twig bark), each one liang. Total twelve ingredients, chopped, placed in a silk bag, soaked in one dou of clear wine. Soak for seven days in winter, three days in summer, five days in spring and autumn. When ready, take one ge initially, three times a day. Gradually increase the dose until mild numbness is achieved.