alligator pear avocado avocado pear black butter pear climacteric fruit cultivar egg-shaped fertility fruit firm food fruit green green-skinned guacamole hard Hass variety healthy large berry large seed nutritious ovate pebbled skin perennials persea americana ripe rough soft tree unripened wrinkled citrus citrus-fruit colors colours cultivated cut edible flavor flavoring flavour flavouring fresh halved juicy mandarin mandarin-orange mandarine mandarins nutrition nutritional open orange oranges peeled pips pith pithy seeds skin surface surfaces sweet tangy taste tasty texture textures white agricultural agriculture berry citrullus lanatus cucurbita dark green elongated endocarp exocarp fleshy melon mesocarp moist mottled pepo red rind rockmelon round shape smooth sucrose sugars variations vine water melon watermelon annual appearance bee bloom blue-sky bright brown cluster composite flower flora florets flower flowers gold golden helianthus annuus inflorescence insect kernels large large-head light pattern petals plant plants popular radiant sky spiral spiralling-florets sunflower sunflowers sunlight sunny sunshine widespread yellow aroma clingstone color colour cultivars delicate drupes jam kernel nectarines peaches pit Prunus prunus persica var. nectarine Rosaceae seed smooth skin stone stone fruit tree fruit variety whitish flesh whole