bamboo bambusa Bambuseae clump clump of bamboo dried evergreens foliage grass green grove growth leaves miniature bamboo perennial plants potted straight strong upright Australian banksia ericifolia Banksia tree bloom color colour curly elongated evergreen fawn flora flower furry golden heath banksia loops loopy native orange saw-edged leaves serrated serrated leaves soft spring textures trees tubular wiry yellow abstract appearance background black boy bush bushland descending fronds grass tree layered layers leaf light lines outback plant slow-growing spiky spiny leaves standing strands sunlight texture unusual vegetation wallpaper Xanthorrhoea angled angles rigid thorns thorny wild clustered cool height high open palm-branches palm-trees palms public shade shadows shady tall varieties variety views bright bush-pea colored colorful colors coloured colourful colours distinctive drought-tolerant flowers gold greenery hardy pea-flower shrub threatened Western-Australia wild-flowers backdrop coloring colouring contrast contrasting display garden green greenery sunshine surface surfaces variations avenue lined groundcover