呈圆柱形，表面灰黄色或淡褐色，质硬而韧，断面皮部黄白色，纤维性并显粉性，味微甜的药材是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30673' and id < 2472755 and id<>'2472755' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30673' and id > 2472755 and id<>'2472755' order by id asc limit 5