Velvet Bean: Chiang Dao
Velvet bean is a vigorous, nitrogen-fixing, bushy or vining, annual plant. The vines will climb anything available and can reach 10 m or more in length. Velvet bean is somewhat drought tolerant and is an excellent green manure or cover crop with ability to suppress weeds and provide generous amounts of organic matter and nitrogen for the soil.
Climbing variety. Requires short days for flower and pod production. Seeds are black.