Steironema ciliatumSteironema pumilum Lysimachia ciliata, the fringed loosestrife, is a species of flowering plant in the family Primulaceae.

[1] It is native to North America, including most of southern Canada and most of the United States except for the southwest.

This plant is notable in that it is one of the few species of Lysimachia to bear elaiophores, that is, to offer oil instead of nectar as a reward to pollinators.

It can be aggressive, but new suckers can be removed easily to keep plant size under control.

The most common cultivars of L. ciliata include: 'Firecracker'[3] has gained the Royal Horticultural Society's Award of Garden Merit.