Hatred Flower

The Hatred flower is a common flower found in Arctic lands of the Underground, at Snowdin woods and Iceland. The hatred flower appears red, pointy petals. It is used as a medicinal plant and used to produce hatred's perfume. They are poisonous for human consumption, but useful to produce medical products.

Origins
The origins of the Hatred flower start at Alphys's laboratory. The hatred flower descended from the hope flower, created in purpose to be planted at the flower bed in the Ruins, to instantly kill any human that smells its poisonous antiseptic odour. However, the poisonous odour isn't harmful to monsters. The ones who die would get their soul extracted by Royal Guard scientists and would be given to the King. However the project was abandoned few weeks after starting, because of the discovery of savage Toriel's presence. The flowers weren't fully developed yet, and are less harmful to humans than expected. Alphys gave up the project, and threw the seeds away, at Iceland. Few months later, the flowers grew, reproduced and spread in the Arctic regions in the Underground.

Nobody wanted to eliminate their existence, because they are very useful to create medical products and easier to find than all other medicinal plants.

After the successful products made from this flower were sold, doctors decided to study the origins of the flower. Based on what they discovered, they realized that the flower was made to kill humans. After the discovery, they thought about naming the flower "Hatred Flower", because of its deadly antiseptic level.