In forest farming, high- value specialty crops are cultivated under the protection of a forest overstory that has been modified or managed for sustained timber production and to provide the appropriate microclimate conditions.
Shade-tolerant specialty crops like ginseng, shitake mushrooms, and decorative ferns grown in the understory are sold for medicinal/botanical, decorative/handicraft, or food products. Overstory trees are managed to produce timber and veneer logs.
– from Training Manual for Applied Agroforestry Practices – 2006 ed. Center for Agroforestry, University of Missouri-Columbia.