bush bushes christmas christmas rites herbal medicine herbs kiss mistletoe mistletoes nature plant sky symbiont symbiosis symbiote tradition tree trees decoration leaves xmas xmasphoto2013 branches Castanea chestnut England english Great Britain park Sussex Viscum album winter apple tree branch host kent natural parasite Santalaceae birch spring abundant blooms brilliant christmas tree clusters dense evergreen flora flowers golden honey-scented moodjar native Nuytsia floribunda orange parasitic summer Western Australian arbor background blue bow C4U ChIandra4U cloud clouds dream fun green icescape illustration joy landscape love magic New newyear rainbow red scape season snow spar vector whishes year