Silene dioica

Silene dioica (syn. Melandrium rubrum), known as red campion[1] and red catchfly,[2] is a herbaceous flowering plant in the family Caryophyllaceae, native throughout central, western and northern Europe, and locally in southern Europe.

Silene dioica
Silene dioica (red campion)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Caryophyllaceae
Genus: Silene
Species:
S. dioica
Binomial name
Silene dioica

Description

It is a biennial or perennial plant, with dark pink to red flowers, each 1.8-2.5 cm 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. The flowers are unscented. The flowering period is from May to October and the flowers are frequently visited by flies, like Rhingia campestris.[3] The plant grows to 30–90 cm, with branching stems. The deep green leaves are in opposite and decussate pairs, simple acute ovate, 3–8 cm long with an untoothed margin; both the leaves and stems of the plant are hairy and slightly sticky. The upper leaves are stalkless.

Distribution

Silene dioica is native to northern and central Europe and is locally abundant throughout the British Isles.[4] It is generally common in Northern Ireland,[5] but rare elsewhere in Ireland.[6] The plant is common on the Isle of Man where it is known as "blaa ny ferrishyn" or "fairy flower", and has a local taboo against picking it.[7]

Red campion grows in roadsides, woodlands, and rocky slopes. It prefers to grow on damp, non-acid soils.[8]

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.[9]

Disease

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[10] which appears as a mass of brown spores in the mouth of the flower where the anthers would normally be.

Uses
A Lychnis 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'.

The nectar of the flowers is utilised by bumblebees and butterflies, and several species of moth feed on the foliage.

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References
  1. "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2014-10-23. Retrieved 2014-10-17.
  2. "Silene dioica". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 14 November 2015.
  3. Van Der Kooi, C. J.; Pen, I.; Staal, M.; Stavenga, D. G.; Elzenga, J. T. M. (2015). "Competition for pollinators and intra-communal spectral dissimilarity of flowers" (PDF). Plant Biology. 18: 56–62. doi:10.1111/plb.12328. PMID 25754608.
  4. Clapham, A.R., Tutin, T.G. and Warburg, E.F. 1962. Flora of the British Isles. Cambridge University Press.
  5. 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. ISBN 0-85389-446-9
  6. Webb, D.A., Parnell, J. and Doogue, D. 1998. An Irish Flora. Seventh Revised Edition. Dundalgan Press (W. Tempest) Ltd. Dundalk. ISBN 0-85221-131-7
  7. Moore, A.W. (1924). A Vocabulary of the Anglo-Manx Dialect. Oxford University Press.
  8. EnchantedForest: Red Campion Archived 2006-05-21 at the Wayback Machine
  9. Stace, C. A. (2010). New Flora of the British Isles (Third ed.). Cambridge, U.K.: Cambridge University Press. pp. 473. ISBN 9780521707725.
  10. "Distribution of the anther-smut pathogen Microbotryum on species of the Caryophyllaceae". NCBI. July 2010. Retrieved 15 August 2020.


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