Koenigia alpina (synonym Aconogonon alpinum),[1] commonly known as alpine knotweed,[2] is similar to Koenigia alaskana, but differs in leaf size and achene characteristics.

[3] It is native to Europe and temperate Asia.

[1] It is one of the parents of the cultivated hybrid Koenigia × fennica, the other being Koenigia weyrichii.

[4][5]