Bitter gourd is a green-skinned vegetable with white to translucent flesh and a taste that fits its name. Unless you grew up with bitter gourd as part of your regular diet, it might take you a while to warm up to the bitter flavor. Bitter gourd is also a vegetable of many names. It is equally known as bitter melon, bitter cucumber, balsam-pear, bitter apple, or bitter squash. This vegetable is also called karela in India, nigauri in Japan, goya in Okinawa, ampalaya in the Philippines, and ku-gua throughout China.