多分枝，呈结节状；表面黑褐色或棕褐色，有坚硬的细须根残留，上面有数个圆形空洞的茎基痕，洞内壁显网状沟纹的药材是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29382' and id < 2393341 and id<>'2393341' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29382' and id > 2393341 and id<>'2393341' order by id asc limit 5