aspen autumn fall foliage mountain mountains national park parks Rockies rocky allocasuarina allocasuarina-decaisneana angiosperm arid Australian-pine branchlets Casuarina conifer-like desert-country desert-oak desert-region distinctive dry evergreen feathery-foliage green hardy hot inland leaf leaves medium-sized tree native she-oak sheoak textures tiny-scales tree trees vegetation whorls bush England english garden Great Britain nature plants shadows shrub stems yellow background blades bracts bright color colored colors colour coloured colours cut dark fronds furry gray grey leaf-stalks light lines palm palm-foliage palm-tree parts perspectives pieces plentiful rough shaped shapes surface texture trunk variations variety various flowing water forest house river stream summer water alien carnivore carnivorous Drosera eerie glands odd plant sticky strange sundew unusual Dandelion delicate flower head propagate seed stem weed weeds