abstract appearance Australian background bare bark brown colors colours cracked cracks dry edge edges eucalypt eucalypts gray grey layers lines mottled rough shadows shapes smooth sunlight surface texture textured textures tree tree-trunk trunk uneven variations wallpaper white wood abundance abundant berries bracts clusters drupes endocarps flowers foliage fronds fruit fruitful inflorescences leaf stalks leaves light mesocarp palm palm tree perspectives petioles plentiful pods productive seed-bearing fruits seeds sprays variety various backgrounds bumps close-up grain hard-wood lumber patterns ridges shades-of-colour surfaces timber varieties wood-grain