castle castles coast dramatic Dunstanburgh England English Heritage national trust North East Northumberland Northumbria ruined ruinous ruins united kingdom war Wars of the Roses african Caesar cat Cezar coat hair hunt lion male mane paw rescued zoo architecture cascade dam fall force fresh freshness Great Britain green habitat historical moss natural nature old oxygenated oxygenation plants power stone strength strong wales wall water welsh wild woodland altitude austere avens broken canada Dryas endurance endure extreme flower hard hardy height high landscape montane mountain plant resilient rock Rockies Rocky Mountains seedhead shattered splintered stark summit top tough alpine armour armoured Asteraceae Carlina acaulis carline dicotyledon Eberwurz edible europe flowering fortune Good humidity hunter's bread hurt indicator medicine needles perennial rosette silver thistle spine spiny star stemless sun thistle thorn thorny traditional