alligator alligator pattern alligator skin alligator skin texture alligator texture background fill space texture alligator-pear avocado avocado-pear black butter-pear climacteric-fruit cultivar egg-shaped fertility-fruit firm flesh food fruit Fuerte-variety green guacamole Hass-variety healthy large-berry large-seed nutritious ovate pear-shaped pebbled skin perennials persea-americana ripe rough section smooth soft tree wrinkled cut