Trichosanthes cucumerina is not a real flower but rather a vegetable. However, it looks like a flower. It is originally native to India but it is largely available in many parts of the world. This veggie (植物) has a bitter (苦的), sour taste yet it is used in a lot of cooking. It is also used in medicine.
Psychotria elata has many names including Hot Lips and Flower Lips. This exotic (奇异的) flower can be found in Colombia, Costa Rica and Panama. It is a very popular flower due to its extremely unique appearance (外表). It is illegal (非法的) to pick this flower since it is on the endangered species list.
Antirrhinum majus looks more like a small skull (颅骨). However, it is one of the best fragrant (芳香的) flowers. It also has an appealing (吸引人的) bright color. Historically, these flowers were believed to have magical powers.
Caleana major is another Australian weird (奇怪的) flower. Due to its delicate (精细的) growth requirements, this flower has never been propagated (繁殖的). If you want to have one, you will need to visit Australia where it grows in the Australian bush.