It is a
biennial or
perennial plant, The plant grows to 30–90 centimetres (12–35 inches) tall, with branching stems. The deep green
leaves are in
opposite and
decussate pairs, simple acute ovate, 3–8 cm (1–3 in) long with an untoothed margin; both the leaves and stems of the plant are hairy and slightly sticky. The upper leaves are stalkless.
Blooming from May to October, the unscented
flowers are dark pink to red, each 1.8–2.5 cm (3⁄4–1 in) across. There are five
petals which are deeply notched at the end, narrowed at the base and all go into an urn-shaped
calyx. As indicated by the specific name, male and female flowers are borne on separate plants (dioecious), the male with 10
stamens and a 10-veined calyx, the female with 5 styles and a 20-veined calyx.
The fruit, produced from July onwards, is an ovoid capsule containing numerous seeds, opening at the apex by 10 teeth which curve back.
Taxonomy
Plants of Silene latifolia × Silene dioica = Silene × hampeana that are fertile
hybrids with the closely related white campion (Silene latifolia) are common in some areas. They may have paler pink flowers and be intermediate between the two species in other characters.[4]
Distribution and habitat
Silene dioica is native to northern and central Europe and is locally abundant throughout the
British Isles.[5] It is generally common in
Northern Ireland,[6] but rare elsewhere in
Ireland.[7] It is common on the
Isle of Man.[8] It has been introduced in Iceland, Canada, the US, and Argentina.[1]
Red campion grows in roadsides,
woodlands, and rocky slopes. It prefers to grow on damp, non-acid soils.[9]
The flowers of red-campion along with a number of other Caryophyllaceae members, are very susceptible to a
smut (fungus) infection. In this case by Microbotryum silenes-dioicae known as anther-smut[11] which appears as a mass of brown spores in the mouth of the flower where the anthers would normally be.
Cultivation
This plant is used as an ornamental perennial flower for the perennial border. One particularly notable variety is a hot pink, double flowered variety with deep green leaves called 'Firefly'.
In culture
On the Isle of Man, it is known as "blaa ny ferrishyn" or "fairy flower", and there is a local taboo against picking it.[8]
References
Wikimedia Commons has media related to Silene dioica.
^USDA, NRCS (n.d.).
"Silene dioica". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 14 November 2015.
^Clapham, A.R., Tutin, T.G. and Warburg, E.F. 1962. Flora of the British Isles. Cambridge University Press.
^Hackney, P.(Ed) 1992. Stewart & Corry's Flora of the North-east of Ireland. Third Edition Institute of Irish Studies, The Queen's University of Belfast.
ISBN0-85389-446-9
^Webb, D.A., Parnell, J. and Doogue, D. 1998. An Irish Flora. Seventh Revised Edition. Dundalgan Press (W. Tempest) Ltd. Dundalk.
ISBN0-85221-131-7