Croton and Artanema are both a what?
Artanema The genus Artanema is a small group of flowering plant species in the Linderniaceae. It was formerly included in the Plantaginaceae, but reclassified based on genetic evidence.
Homonoia riparia The willow-leaved water croton, (Homonoia riparia), a mangrove species, belongs to the genus "Excoecaria" of the family Euphorbiaceae. The plant is widely distributed through South Asian and South East Asian countries such as Cambodia, China, Indonesia, Laos, Papua New Guinea, Philippines, Sri Lanka, Taiwan, Thailand and Vietnam. It is grown in wet soil near river banks and flooded plains.