Bidens pilosa

Scientific name: Bidens pilosa

Family: Asteraceae
Origin: Tropical America

Category: Annual

Photographs taken at: The Rooftop Secret Garden of 1-Utama

This plant has many common names, even within the same culture.

English: Black Jack, Spanish Needle

Malay: Ketul

Chinese: 鬼针草 ('gui zhen cao' meaning ghost needle grass)

Taiwanese: 咸豐草 (xian feng cao where xianfeng is the name of a county in China)

Philipines: Pisau-pisau.