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 . It is a low-growing, clump-forming temperate evergreen perennial, reaching 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.Helgi Hallgrímsson & Guðríður Gyða Eyjólfsdóttir (2004). Íslenskt sveppatal I - smásveppir [Checklist of Icelandic Fungi I - Microfungi. Fjölrit Náttúrufræðistofnunar. Náttúrufræðistofnun Íslands [Icelandic Institute of Natural History]. ISSN 1027-832X
Cultivation Viola cornuta is hardy to USDA zones 6–11 (hardy in the UK to ). Many cultivars are hybrids with Viola × wittrockiana, designated as Viola × williamsii. Some of these, such as 'King Henry', may be hardy to zone 4.
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