根和根状茎都由表皮、皮层和维管柱组成。
The root and rhizome were composed of the epidermis, cortex and vascular cylinder.
茎的解剖结构也由表皮、皮层和维管柱组成。
The primary structure of stem consists of epidermis, cortex and vascular cylinder too.
根状茎的次生结构由外向内为表皮，皮层和维管柱，髓射线发达。
The secondary structure of rhizome include epiderm, cortex and vascular tissue, pith ray is developed.
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