Bidens macroptera

Bidens macroptera, or adey abeba, is a flowering plant native to Ethiopia. In Ethiopia, adey abeba symbolizes the end of the rainy season and the start of Spring (ፀደይ). It also indicates the end of a year and the beginning of a new one. For Ethiopian New Year (Enkutatash), a group of young girls sing the traditional new year song Abebayehosh (አበባየሁሽ) and give adey abeba to their parents and loved ones as a symbol of luck and blessing for the new year.

Symbol
The flower adey abeba symbolizes not only the end of the rainy season and the start of summer but also indicates the end of a year and the beginning of a new one. it only blossoms in August and stays for two months. It's a small flower with 8 yellow petals.