barrenwort
Epimedium alpinum latin
horny goat weed

Another, less complimentary, common name is is barrenwort.

Epimedium x rubrum, known as red barrenwort, is a perennial flowering plant in the family Berberidaceae, cultivated in gardens.

Epimedium grandiflorum (large flowered barrenwort, bishop's hat) is a species of flowering plant in the family Berberidaceae, native to China, Japan and Korea.

They also grow beautifully with Barrenwort, Bleeding Hearts, Japanese Painted Fern, Jacob's Ladder, Lamium, Lungwort, or Solomon's Seal.

Plant a groundcover like barrenwort or wild ginger; spread a four-to-six-inch layer of mulch; or simply enjoy the natural beauty of the roots, rising like sculpture against a background of earth, moss and low weeds.