Definition of "longleaf" [longleaf]

• A longleaf pine, Pirus palustris, or the wood of this tree (noun)

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• "For forest species such as longleaf pine, higher CO2 levels improve water use efficiency, which may improve drought tolerance, by causing leaf pores or stomates to stay partially closed longer."
• "Ronnie's boss had sent him over to clear out some of the thick yaupon and gall berry bushes around the house to give our longleaf pines a fighting chance."
• "Since 2004, a partnership between NFWF and Southern Company, the Longleaf Legacy Program, has invested over $8.7 million into projects that will restore more than 82,000 acres of longleaf pine forest and the native species that rely on it."