BrowseTwigs, leaves, and young shoots of trees and shrubs that animals eat.
BryophytesPlants of the phylum Bryophyta, including mosses, liverworts and hornworts, characterized by the lack of true roots, stems and leaves.
BryozoanAquatic colonial animals with branching, mossy or fan-like growth. They resemble corals but have more complex nervous, muscular, and digestive systems.
Build outThe estimated extent of residential, commercial, and industrial development in a given geographic area; usually related to the upper limit of the…
Build-out capacityThe maximum total percentage of development in a watershed; typically determined assuming current zoning holds indefinitely into the future.
Bulk DensityThe weight of a material per unit of volume compared to the weight of the same volume of water.
BunchgrassA grass having a bunched growth form and lacking rhizomes.
Bureau of Land ManagementAn agency of the U.S. Department of the Interior that is responsible for managing public lands.
BurrowA hole made by an animal, usually for shelter or to move through by digging.
ButaneA gas derived from natural gas. Used as a component of gasoline. Used in liquefied petroleum gas (LPG) for domestic and industrial applications.
Butanol or butyl alcoholAn alcohol with the chemical formula CH3(CH2)3OH. It is formed during anaerobic fermentation using bacteria to convert the sugars to butanol and carbon…
Butt logThe log taken from the base of a tree; often slightly irregular.
by-productMaterial, other than the principal product, generated as a consequence of an industrial process or as a breakdown product in a living system.