Bog arum (Calla palustris)

Bog arum (Calla palustris) is a perennial herb in the arum family, native to wetlands. It grows in bogs, swampy forests and along the shores of lakes and ponds, where it can form small or larger colonies.

The plant has a thick, creeping rhizome and long-stalked, green, heart-shaped leaves. It flowers in May and June, producing a short spike of small, yellowish-green flowers surrounded by a distinctive white, oval-shaped spathe. After flowering, bright red berries develop.

Bog arum is a characteristic wetland plant in Latvia, where it is fairly common throughout the country.