In the U.S., the name on the label of an herbal product must match which of the following reference sources?

The name on the label of an herbal product in the U.S. must match "Herbs of Commerce." This reference serves as an authoritative source that provides accepted common names for various herbs, ensuring consistency in the labeling and marketing of herbal products. When a product is labeled, it is critical that the name aligns with this established guide to prevent confusion and ensure that consumers know exactly what they are purchasing.

"Herbs of Commerce" includes a comprehensive list of herbs and their corresponding names—facilitating standardization across the industry. This standardization is vital for safety, efficacy, and authenticity, helping consumers and healthcare professionals communicate effectively about the products.

The other references mentioned, while valuable in their own right, do not serve the same purpose as "Herbs of Commerce" regarding labeling consistency and regulatory compliance in the U.S. Hence, the correct answer emphasizes the importance of standardization in herbal product names for consumer protection and professional communication.