What is the name for small, thin trees typically harvested for wood chips and biomass?

The term used for small, thin trees that are commonly harvested for wood chips and biomass is pulpwood. Pulpwood is specifically designated for the production of pulp, which is then used to make paper and other wood products. Because these trees are typically smaller and less developed than those used for higher-quality lumber, they serve an essential role in the industry, allowing for the efficient use of resources and providing materials required for various applications, including biomass energy production.

In contrast, the other options refer to different classifications of timber. Scragg generally refers to low-quality timber that is not suitable for standard boards but may be used for other purposes. Chip-n-saw denotes larger trees that can be processed for both chips and lumber and may not fit the criteria of being small and thin. Sawtimber specifically refers to larger trees that meet certain standards for quality and size, making them suitable for producing dimensional lumber. Thus, pulpwood is the most accurate term for the specified characteristics in this context.