[Pharmacognostical study of tall monkshood root]

To provide the scientific basis for gruffs identification and utilization of tall monkshood root.

We studied tall monkshood root through the macroscopic, microscopical and Physicochemical identification.

In the cross section of tall monkshood root, there were cork cortex cells, a cricoid range hetero-vascular bundle, radial-cell including radial little brown cell, a great deal of starch grain, cortex organize fragment was brown, cell squareness and polygon.

These character can provide scientific basis for its quality standard and development.