Viola cornuta explained

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 1000-.^[1] It is a low-growing, clump-forming temperate evergreen perennial, reaching 50cm (20inches) 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.^{[2] [3]}

This plant,^[4] and the white-flowered Alba Group,^[5] have gained the Royal Horticultural Society's Award of Garden Merit.^[6]

It is a known host of the pathogenic fungus Puccinia violae.^[7]

Notes and References

1. Book: Plumbaginaceae (partim) – Capparaceae . Viola L. . F. Muñoz Garmendia . P. Montserrat . M. Laínz . J. J. Aldasoro . amp . . 276–317 . 3 . 978-84-00-08359-5.
2. Book: Fuller, Rodney. Pansies, violas and violettas: the complete guide. 1993. Crowood Press. United Kingdom. 978-1-85223-748-6.
3. Book: Edwards, Ray. Hardy perennials: RHS practicals. 1999. Dorling Kindersley. United Kingdom.
4. Web site: RHS Plant Selector "Viola cornuta" . 5 March 2021.
5. Web site: RHS Plant Selector Viola cornuta Alba Group . RHS . 5 March 2021.
6. Web site: AGM Plants - Ornamental . July 2017 . 107 . Royal Horticultural Society . 18 February 2019.
7. 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 -15C). Many cultivars are hybrids with Viola × wittrockiana, designated as Viola × williamsii. Some of these, such as 'King Henry', may be hardy to zone 4.

   Bibliography

   • Web site: MBG. Missouri Botanical Garden. Viola cornuta . Plant finder . 28 April 2020. 2020.
   • Web site: Viola ×williamsii . Plant Encyclopaedia . Alpine Garden Society. 28 April 2020 . 2018. .
   • Web site: Dave's Garden. Viola, Horned Violet, Tufted Pansy 'King Henry'. 28 April 2020. 2020. .

   External links