It is abiennial orperennial plant, The plant grows to 30–90 centimetres (12–35 inches) tall, with branching stems. The deep greenleaves are inopposite anddecussate 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.[4]
Blooming from May to October, the unscentedflowers are dark pink to red, each 1.8–2.5 cm (3⁄4–1 in) across. There are fivepetals which are deeply notched at the end, narrowed at the base and all go into an urn-shapedcalyx. As indicated by the specific name, male and female flowers are borne on separate plants (dioecious), the male with 10stamens and a 10-veined calyx, the female with 5 styles and a 20-veined calyx.[4]
The fruit, produced from July onwards, is an ovoid capsule containing numerous seeds, opening at the apex by 10 teeth which curve back.[4]
Plants ofSilene latifolia ×Silene dioica =Silene ×hampeana that are fertilehybrids 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]
Silene dioica is native to northern and central Europe and is locally abundant throughout theBritish Isles.[5] It is generally common inNorthern Ireland,[6] but rare elsewhere inIreland.[7] It is common on theIsle 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 asmut (fungus) infection. In this case byMicrobotryum 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.
ALychnis moth caterpillar feeding on the seeds of red campion (Silene dioica).
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'.
^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
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