Onagraceae - Evening-primrose family.

This family of annual or perennial herbs includes the commonly known evening-primrose and fire weed genera. The flowers are perfect and generally regualr, with usually 4 sepals and 4 petals wth as many, or twice as many stamens as sepals. The fruit is either a capsule or small nut.

Genera found in Manitoba:

Circaea
Epilobium
Gaura
Oenothera