漢薬・続断の生薬学的研究(第2報) : 四国産和続断の基源植物について(1) Cirsium japonicum DC.の内部構造と生育環境との相関性

概要

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Wa-zokudan 和続断 fox or Azami-Kon アザミ根 (Cirsii Radix) is used as the folk remedy for neuralgia and rheumatism in Japan. Cirsium includes many species, and many origins from various habitats are on the market. Among them Cirsium japonicum DC. is the most collected species and distributed to the hills and fields throughout the country except Hokkaido district. The goods on the market from Tokushima and Kagawa prefectures are proved to be the roots of Cirsium japonicum mixed with some roots of a few other Cirsium spp. Cirsium japonicum is also collected in Iwate, Nagano and Shizuoka prefectures. The internal structures of the plants, however, are varies with their habitats. The comparative studies of the plants collected from 175 points except Hokkaido district on the roots, rhizomes and stems of them shown a certain relation between their internal structures and the annual mean temperatures of respective habitat. If the annual mean temperatures of the habitats are below 10°, the plants are characterized by few endodermal secretory canals and small diameters of the canals, more phloem and wood fibers, more thick-walled & lignified medullary rays and small diameters of the pithes as shown Map 1, TABLE I to III and Fig. 5.
日本生薬学会の論文
1972-06-20