出东洋舶上带来,叶如篦箕,生两旁,作细尖瓣,嗅之有清气,似梅花香。 按∶群芳
谱∶
铁树出海南,闽广多有之,其花状如铁丝灯笼,广张千瓣,瓣各一花。程扶摇花镜∶铁树叶
类石楠,质理细浓,干叶皆紫黑色,花紫白如瑞香,四瓣较少团,一开累月不凋,嗅之乃有
草气。海南人言∶此树黎州极多,有一二尺长者,叶密而花红,树俨类铁,其枝桠穿结,甚
有画意。入盆玩最佳。但人罕见,故称奇耳。横州驯象卫殷指挥贯家,有铁树,每遇丁卯年
开花,而出五台山者,定以六月十九日开花。杨万里诗注∶铁树叶似 而紫,干如密节菖蒲
。似此诸说,同一铁树。而开花与枝叶又不同如此。今洋中带来及世俗所用入药之铁树,叶
形如篦箕。据云∶其树须壅以铁屑乃盛,则番蕉叶也。以其食铁,故亦名铁树。其性亦平肝
,取其相制为用,亦颇验。谢肇浙五杂俎∶番蕉能辟火患。将枯时,以铁屑粪之,或以铁钉
钉其根,则复活。盖金能生水也。种盆中不甚长,一年才落下一叶,计长不能以寸,亦不甚
作花,三十年仅见两度花耳。花亦似芭蕉,而色黄不实。群芳谱∶凤尾蕉,一名番蕉。产于
铁山,如少萎,以铁烧红穿之,即活。平常以铁屑和泥壅之则茂,而生子分种易活。江西涂
州有之。花镜∶凤尾蕉,一名番蕉。产于铁山,江西福建皆有。叶长二三尺,每叶出细尖瓣
,如凤尾之状,色深青,冬亦不凋。如少萎黄,以铁烧红钉其本上,则依然生活。平常不浇
壅,以生铁屑和泥壅之自茂,且能生子分种易活。极能辟火患。人多盆种庭中,以为奇玩。
友人唐振声在东瓯见凤尾蕉,土人皆呼为铁树。则知今人所用及洋舶带来之叶,皆番蕉叶。
而非真正铁树叶也。濒湖于隰草部只列甘蕉 荷,而于虎头凤尾等蕉概不及焉,或当时未有
知其性者,今录之以补其缺。
平肝,统治一切肝气痛。
难产∶铁树叶三片,煎水一碗服之,即下。(指南)
Brought from ships of the Eastern Seas (Japan), the leaves resemble a hair comb's base, growing on both sides, forming fine pointed segments. When smelled, it has a clear fragrance, similar to that of plum blossoms.
Note: *Qunfang Pu* records: The Iron Tree originates from Hainan and is abundant in Fujian and Guangdong. Its flowers resemble lanterns made of iron wires, with thousands of petals spread out, each petal containing one flower. Cheng Fuyao's *Hua Jing* records: The leaves of the Iron Tree are similar to those of Photinia (*Shinanthus*), with a dense and thick texture; dried leaves are all purple-black. The flowers are purple-white like Daphne odora (*Ruixiang*), with four petals rarely clustered together, blooming for months without fading, yet smelling of grass when sniffed. People in Hainan say: This tree is extremely common in Lizhou, some reaching one or two chi in length, with dense leaves and red flowers. The trunk resembles iron, and its branches intertwine intricately, possessing artistic beauty. It is best potted for viewing. However, as people rarely see it, it is called a curiosity. At the home of Yin Guanzhi, Commander of Xunxiang Guard in Hengzhou, there was an Iron Tree that bloomed every Dingmao year, whereas those from Mount Wutai definitely bloomed on the 19th day of the sixth lunar month. Yang Wanli's commentary on poetry states: The leaves of the Iron Tree resemble [missing character] but are purple, and the trunk is like densely jointed Acorus calamus (*Changpu*). Such various accounts refer to the same "Iron Tree," yet their flowering and foliage differ so greatly. The Iron Tree currently brought from overseas and used in secular medicine has leaves shaped like a hair comb's base. It is said that this tree must be fertilized with iron filings to thrive; thus, it is actually the leaf of the Banana Plant (*Fen Jiao*). Because it "eats iron," it is also named the Iron Tree. Its nature can soothe the Liver (*Gan*), utilizing the principle of mutual restraint, which is quite effective. Xie Zhaozhe's *Wuza Zu* records: The Banana Plant can ward off fire disasters. When withering, if fertilized with iron filings or if iron nails are driven into its roots, it revives. This is because Metal generates Water. When planted in pots, it does not grow tall, shedding only one leaf per year, with growth less than one cun, and rarely flowers. In thirty years, it may bloom only twice. The flowers resemble those of the banana plant but are yellow and do not produce fruit. *Qunfang Pu* records: Phoenix-tail Banana (*Fengwei Jiao*), also known as Fan Jiao, originates from Iron Mountain. If slightly withered, piercing it with a red-hot iron rod brings it back to life. Normally, mixing iron filings with mud to fertilize it promotes lush growth, and propagating by seeds or division is easy. It exists in Tuzhou, Jiangxi. *Hua Jing* records: Phoenix-tail Banana, also known as Fan Jiao, originates from Iron Mountain and is found in Jiangxi and Fujian. Leaves are two to three chi long, each producing fine pointed segments resembling a phoenix tail, deep green in color, remaining evergreen in winter. If slightly withered and yellowing, nailing a red-hot iron rod to the base restores vitality. Without regular watering and fertilizing, applying raw iron filings mixed with mud ensures lush growth, and propagation by seeds or division is easy. It is highly effective at warding off fire disasters. Many people pot them in courtyards as curiosities. My friend Tang Zhensheng saw Phoenix-tail Bananas in Dong'ou, where locals all called them Iron Trees. Thus, it is known that the leaves used today and brought by overseas ships are indeed Fan Jiao leaves, not true Iron Tree leaves. Li Shizhen (Binhu) listed only Sweet Banana (*Gan Jiao*) and Lotus Banana (*He*) in the section on low-lying herbs, omitting Tiger-head and Phoenix-tail bananas, perhaps because their properties were unknown at the time. I record them here to fill this gap.
Soothes the Liver (*Gan*), treating all types of Liver Qi pain.
Dystocia (Difficult Labor): Decoct three pieces of Iron Tree leaf in one bowl of water and ingest. The fetus will be delivered immediately. (From *Zhinan*)