Cryptantha is a genus of flowering plants in the borage family, Boraginaceae.

They are known commonly as cat's eyes and popcorn flowers (the latter name is also used to refer to the closely related genus Plagiobothrys,[1] and members of the subtribe of Amsinckiinae).

[1] These are annual or perennial herbs usually coated in rough hairs and bearing rounded flower corollas that are almost always white, but are yellow in a few species.

[1] Several morphological characters are used to distinguish species from one another, but the most definitive is the form of the nutlet, which varies in shape, size, color, and pattern of attachment.

As of March 2024[update], Plants of the World Online accepts about 110 species:[3] Many Cryptantha species have been transferred to other genera:[5]