Mini Hybrid Bitter Gourd (Treated). Momordica charantia. Non-GMO, Hybrid. 50 to 60 days to maturity. Annual. Bitter Gourd is also known as Bitter Melon, Karella, and Balsam Pear. This small bitter melon is common in Thailand and India. It is an early producer and is notable for its disease resistance. The skin of these uniform 3-4" fruits is dark green and covered with pointy warts. ~140 seeds per ounce.