參考文獻
披散木賊（四川植物志）散生木賊（中國高等植物圖鑑） Equisetum diffusum D. Don in Prodr. Fl. Nepal. 19. 1825: C. B. Clarke in Trans. Linn. Soc. II. Bot. 1: 594. 1880; Baker, Handb. Fern Allies 3. 1887; C. Chr. in Meddel. Fran Geoteb. Bot. Tr. 44: 108. 1924; Schaffner et L. C. Li in Bull. Fan Mem. Inst. Biol. Bot. 9: 125. 1939; Rothm. in Fedde, Repert. Sp. Nov. 54: 75. 1944; Tard. -Blotet C. Chr. in Fl. Indo-Chine 7 (2): 544, f. 64: 8-10. 1951: S. H. Fu, Ill. ImportantChinese Pl., Pterid. 14. 1957; Mehra et Bir in Res. Bull. Panjab Univ. 15 (1-2): 100. 1964; Tagawa in Hara, F. E. Himal. 2: 197. 1971: Ic. Corm. Sin. 1: 116. 1972; Fl. Tsinling. 2: 24. 1974; C. N. Page in Fern Gaz. 11 (1): 29, f. 7. 1974: K. Iwats. inOhashi, Fl. E. Himal. 3: 166. 1975; Y. L. Chang et al., Sporae Pterid. Sin. 51, pl. 5: 24-27. 1976; Fl. Xizang. 1: 31, f. 10: 1-2. 1983; P. S. Wang et X: Y. Wang inGuizhou Sci. 2: 50, 1983; Dixit, Census Ind. Pterid. 19. 1984; K. Iwats. et S. K. Wu et al. in J. Fac. Sci. Uni. Tokyo III. 14: 13. 1986; H. S. Kung, Fl. Sichuan. 6: 83, pl. 25: 1-2. 1988; Bir et al. in Ind. Fern. J. 6: 37. 1989; P. S. Wang, Pterid. Fanj ing Mt. Nat. Res. 26. 1992: Fl. Dulongjiang Reg. 3. 1993: C. M. Zhang in W. T. Wang, Keys Vasc. Pl. Wuling Mts. 9. 1995; L. B. Zhang et H. S. Kung in X. C. Zhang et K. H. Shing, Ching Mem. Vol. 84. 2000. ——E. diffusum D. Don var. paucidentatum C. N. Page in Fern Gaz. 11 (1) : 31, f. 3: a. 1974. ——E. mekon-gense C. N. Page, l. c. 36. f. 3: d. f: 9.形態特徵
中小型植物。根莖橫走，直立或斜升，黑棕色，節和根密生黃棕色長毛或光滑無毛。
分布及生境
產甘肅、上海、江蘇、湖南、廣西、四川、重慶、貴州、雲南、西藏。海拔0-3400米。日本、印度、尼泊爾、錫金、不丹，緬甸、越南有分布。功能用途
醫藥：【僳僳藥】捏子洞俄然：全草用於感冒發熱，目翳，跌打骨折《怒江藥》。【哈尼藥】咯岔查讓，小筆管草：全株治跌打，眼痛，小兒高熱，嘔吐，腹瀉《滇省志》。咯岔查讓：全草治小兒高熱，嘔吐，腹瀉《哈尼藥》。【藏藥】密枝問荊：全株治跌打，眼痛，小兒高熱，嘔吐，腹瀉《滇省志》。【苗藥】全株治感冒發熱，目翳，骨折《湘藍考》。醫藥：全草(問荊)：苦、甘，平。清熱利尿，解表散寒，明目退翳，接骨。用於小兒疳積，感冒發熱，石淋，疝氣，月經過多，衂血、目翳，跌打骨折，關節痛。
