background decoration grain pattern stone texture tile tiles backs graphic element hq back textures castle europe flag green Portugal red yellow animal bird nature bottle bottles container drink flask glow objects abundant angles appearances castor-beans castor-oil castor-oil-plant castor-seeds cluster clusters common cotyledons Euphorbiaceae fast-growing flower flowers foliage highly-toxic inflorescences invasive large large-leaves leaf leaves medicinal palm-of-Christ palma-Christi poison poisonous ricinus-communis seed-pods seedhead shrub shrubbery spiky-green-seed-capsule spiny surface surfaces textured toxic toxins vegetation wasteland-weed weed widespread