BTU 12.2 to 18.2 million BTU (per cord), depending on the variety Weight (green) 3,500 to 4,100 pounds (per MBF) While there ...

The white poplar, known botanically as Populus alba ... In many states, this non-native tree species has made its way onto the invasive species list. Though there is no sweeping federal law ...

The National Trust said black poplar trees were once as common ... to form a breeding population of male and female trees to make the species resilient again. National Trust Images James Beck ...

an urgent effort is needed to form a breeding population of male and female trees to maximise the gene pool and make the species resilient again. Ranger Fi Hailstone planting Black Poplar trees at ...