alcohol ale beer bitter booze can cider lager pint pull ring stout tin belfast chop cold dark drink foam glass guiness malt porter arching Australian black boy bush bushland evergreen flowering fragrant grass tree layers outback plant resin slow-growing spike spiny leaves stout trunk unusual Xanthorrhoea preissii Xanthorrhoea circular dead dried layered remainder rim dumbbell flowers Kingia australis mantle multiple flower stalks tall angles appearance black-boy bush-plants corner garden grass-tree ground-cover multiple-flower-stalks native-plants plants raised-garden spikes spiny-leaves stout-trunk trimmed Xanthorrhoea-preissii bagasse bamboo-like biofuel biomass brown-leaves byproducts cane culms cylindrical dry ethanol fibrous-stalks firm fructose grass grass-family green green-leaves harvesting internodes jointed leaves perennial Poaceae pulp saccharum-officinarum stalk stems sucrose sugar-cane sugar-juice sugar-production sugarcane sweet sweetener thick