Cushion Spurge

Euphorbia epithymoides, the cushion spurge, syn. E. polychroma, is a species of flowering plant in the family Euphorbiaceae, native to Libya, Turkey and East, Middle, and Southeast Europe. It is a compact, clump-forming, herbaceous perennial growing to 45 cm (18 in), bearing terminal cymes of acid yellow flower-heads (cyathia) in spring and summer.