the plane flies across the blue sky. pine forest in winter during the day in severe frost, karelia. snow on the

airplane acft severe anticyclone winter coniferous pinales ship day machine crate forest ap sylvestris season snow snowy aircraft pine blue tree taiga frosty plant gymnospermae nature cold wood branch frost pinaceae frozen plane craft pinoideae vessel pinopsida pinus kite weather snowdrift ecology north evergreen pinophyta