Overall, only 2.1% of the pine trees' rings and 1.3% of the juniper shrubs' rings were blue; the cells which hadn't lignified properly were mainly found at the end of growth rings, in latewood ...
A blue ring formed in 1902 in a tree in northern Norway. Image by Pawel Matulewski and Liliana Siekacz. Scientists studying pine trees and juniper shrubs in northern Scandinavia are revealing the ...
Since trees and shrubs can live for hundreds of years, identifying these blue rings allows us to spot cold summers in the past. By looking at pine trees and juniper shrubs from northern Norway ...
Mahonias are stately shrubs beloved for their easy care and adaptability. They provide striking architecture in the landscape and gorgeous color throughout the year, from yellow winter blooms to ...
By studying these blue rings, researchers can pinpoint periods of extreme cold, with the latest findings highlighting significant cooling events in 1902 and 1877. A close-up of a young green pine ...