View photos of the edible and medicinal plant Leucanthemum vulgare [Chrysanthemum leucanthemum] (Ox-eye daisy), profiled in Medicinal Plants of the Western Mountain States and Wild Edible Plants of Arizona.

A passage from Medicinal Plants of the Western Mountain States:

Little used today, Ox–eye daisy is a mild remedy, and can be thought of as an amalgam of Chamomile (Matricaria–Chamomilla), Garden Chrysanthemum (Chrysanthemum x morifolium), and Feverfew (Tanacetum parthenium). Its old–time use, as a waning fever tonic, has wide application, especially for children. Drink the tea when a fever’s peak has past, yet perspiration is still excessive. The plant’s consolidating non–tannin astringency is at work here and when used at the end of a feverish episode, leads to a more timely recovery.

A passage from Wild Edible Plants of Arizona:

Fresh, they have a mild taste and are fine used as a garnish or salad addition. Larger amounts should be boiled/sautéed and seasoned accordingly.