Viola cornuta

Viola cornuta, known as horned pansy or horned violet, is a species of flowering plant in the violet family Violaceae, native to the Pyrenees and the Cordillera Cantábrica of northern Spain at an altitude of 1,000–2,300 metres (3,300–7,500 ft). It is a low-growing, clump-forming temperate evergreen perennial, reaching 50 cm (20 in) in height and spread. It has mid-green ovate leaves with rounded teeth, and masses of delicate pale violet flowers in early summer. The flower consists of five strap-shaped petals with a slender spur. This plant, and the white-flowered Alba Group, have gained the Royal Horticultural Society's Award of Garden Merit. It is a known host of the pathogenic fungus Puccinia violae....read more on Wikipedia.