Fruit is a berry. Eggplant - Solanum melangena , native to India or China. Important to Indian diet but not widely used in other cultures. Coconuts Cocos nucifera - monocot, very imporant plant in tropics, used for oil, fiber, food and drink. Origin is controversial since coconuts can be dispersed by ocean currents.
Coconuts are monecious, mature fruit contains one seed which is the largest one known.
Date palm - Phoenix dactylifera found in arid regions around Meditteranean, domesticated for 6500 years. Fruits develop without pollination - parthenocarpic Hawaii is currently world's largest producer of pineapples due to efforts of J. P. Dole. Don't put fresh or frozen pineapple in jello since this is gelatin, which is an animal protein and pineapple contains a proteolytic enzyme. Adult plants are giant herbs. Flowers are monoecious, fruit is an accessory type formed from an inferior ovary.