Unverified85% confidenceFactTime unknown
正宗河南焦作垆土铁棍山药表皮呈土褐色、有红斑（俗称铁锈斑），毛须密集且分布不均，折断后横断面颜色由白转微黄；沙土铁棍山药则表皮光滑顺直、品相好但粉性略逊
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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