Conyza canadensis Canadian Fleabane

A North American species that was first recorded in Britain in 1690 and became a familiar species of waste places, railways and sand dunes. It is now much less common in West Glamorgan than Conyza floribunda with which it is easily confused. The key difference is in the disc florets which have 4 petal segments (rarely 5) and the outer florets which have ligules that overtop the phyllaries. It is still found occasionally on gravelly ground and sand dunes in West Glamorgan.

Neophyte

This species has be renamed Erigeron canadensis.