Which description best matches top-quality Sheng Di Huang?

• A. Short, thin roots with rough bark
• B. Large, thick, heavy roots with outer bark, soft texture, and a shiny, black cross section
• C. Fine, light roots with pale cross-section
• D. Very small roots with red cross-section

Answer: (B)

Top-quality Sheng Di Huang is identified by large, thick, heavy roots with their outer bark still intact. This size and weight reflect a substantial tuber with higher content of the desired constituents. A soft texture indicates freshness and proper processing, avoiding overly dry or brittle material. When cut, a shiny, dark (black) cross-section suggests a robust interior that has been well preserved. Smaller, thin, or rough-root material with pale cross-sections would point to inferior quality or aged stock.