anthuriums araceae climbers color coloration colorful colour colourful cultivars cylindrical-spike decorative distinctive epiphytes evergreen exotic flamingo-flower flamingo-lily fleshy-spike flora flowerheads flowers glossy herbaceous humidity-loving hybrids inflorescence laceleaf modified-leaf painted-tongue perennials poisonous red shapes shield-shaped shiny smooth spadix spathe species surface surfaces surfacing tail-flower texture textures toxic toxicity tropical waxy background ball blossom carthamus close up flower macro orange petal plant point pointy spike spiky thistle tiny Aconitum blue cultivar England english garden Great Britain grow monkshood perennial plants Ranunculaceae spikes summer tall autumn elegant long love nature passion Persicaria pink Polygonaceae smartwood thin barnacle bur green pointed sharp sharp-pointed sky thorn tip yellow