表面淡黄白色至淡棕黄色或棕色，具微细的纵皱纹，并有纤细的须根；质脆，易折断，断面粉性，切断面皮部类白色或黄白色，形成层环淡棕色，木部细小；气香，味微辛凉的药材是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29382' and id < 2393362 and id<>'2393362' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29382' and id > 2393362 and id<>'2393362' order by id asc limit 5