bush bushes entangled green intricate labyrinth labyrinthine maze mazy nature sinuous stem straggly stripes tangly three trunk Australian bark branches bush-tucker central-Australia cork corkbark corkwood corkwood-tree food hakea hakea-eyreana medicinal straggly-corkbark tangle tree twisted above background bare bare-branches budding buds clouds contrast contrasting deciduous empty large reaching-up silhouette skeletal sky spread spreading spring stark tall tips tree-top trees bleached claw-like dead dry eucalypts foliage gum-trees shade shadows sunlight sunshine weathered windswept