Myosotidium is a genus of plants belonging to the family Boraginaceae.

[4][5] The biogeography is yet unresolved, but its ancestors may have originated from the American continent, as Myosotidium hortensia was found to be sister to the South American plant genus Selkirkia[6] and both genera being sister to the North American genus Mimophytum.

The inflorescence bears numerous blue flowers in the late spring.

In addition to the blue-flowered species, 'Alba', a white flowered cultivar is also popular in cultivation.

In its natural habitat, M. hortensia occurs near beaches under the direct influence of sea-water spray and sea-winds.