Rose root, Rhodiola rosea, used in herbal medicine. Close up of single flower head, selective focus.

Rose root, Rhodiola rosea, used in herbal medicine. Close up of single flower head, selective focus.

Rose root, Rhodiola rosea, used in herbal medicine. Close up of flower heads, selective focus.

Rose root, Rhodiola rosea, used in herbal medicine. Close up of single flower head, selective focus.

Rose root, Rhodiola rosea, used in herbal medicine. Close up of flower heads, selective focus.

Rose root, Rhodiola rosea, used in herbal medicine. Close up of single flower head, selective focus.

Rose root, Rhodiola rosea, used in herbal medicine. Close up of single flower head, selective focus.

Rose root, Rhodiola rosea, used in herbal medicine. Close up of flower heads, selective focus.

Heart's ease, Viola tricolor. Close up.

Cuckoo flower, Cardamine pratensis, growing outdoor in a garden.

Hawthorn, Crataegus laevigata, Three berries or 'haws' on a twig with icicles hanging from each, against a soft focus blue green background.

Holly, Ilex aquifolium leaves on a twig with melting snow against a dappled background.