Easter-lily environmental-weed flora flowers Formosa-lily Formosan-lily fragrant garden garden-plant lilium-formosanum lilium-longiflorum lilium-philippinense lilium-yoshidai lily November-lily outward-facing-flowers St-Joseph's-lily Taiwan-lily teppouyuri toxic trumpet-lily trumpet-shaped unbranched-stems upright-herbaceous-plant white agricultural-pest arum-lilies arum-lily bush bushland calla-lily childsiana color colour death-lily declared-pest dense-clumps funeral-flower green-goddess herbaceous introduced invasive lifestock-threat lily-of-the-Nile out-of-control pasture-invader perennial pig-lily spreading surface surfaces surfacing texture textured textures thick-fleshy-leaf-blades varkblom weed white-arum-lily zantedeschia-aethiopica