Silene chalcedonica

(Linnaeus) E. H. L. Krause

in J. Sturm et al., Deutsch. Fl. ed. 2, 5: 96. 1901.

Common names: Maltese-cross scarlet lychnis lychnide de Chalcédoine croix de Jérusalem
Basionym: Lychnis chalcedonica Linnaeus Sp. Pl. 1: 436. 1753
Synonyms: Agrostemma chalcedonica (Linnaeus) Doellinger
Treatment appears in FNA Volume 5. Treatment on page 179. Mentioned on page 168.

Plants perennial, coarse, rhizomatous; rhizome branched, stout. Stems erect, few-branched, 50–100 cm, hispid. Leaves rounded into tightly sessile base; blade lanceolate to ovate, 5–12 cm × 20–60 mm, apex acute, sparsely scabrous-pubescent on both surfaces, scabrous-ciliate on abaxial margins and midrib; basal leaf blades broadly spatulate. Inflorescences subcapitate between terminal pair of leaves, 10–50-flowered, congested, bracteate; bracts lanceolate, herbaceous, ciliate. Flowers sessile to subsessile, 10–16 mm diam.; calyx 10-veined, narrow and tubular in flower, clavate in fruit, 12–17 mm, margins dentate, lobes triangular-lanceolate, 2.5–2.5 mm, coarsely hirsute; petals scarlet, sometimes white or pink, clawed, claw equaling calyx, limb spreading, obovate, deeply 2-lobed, 6–11 mm, shorter than calyx, appendages tubular, 2–3 mm; stamens equaling calyx; stigmas 5, equaling calyx. Capsules ovoid, 8–10 mm, opening by 5 teeth; carpophore 4–6 mm. Seeds dark reddish brown, reniform-rotund, 0.7–1 mm diam., coarsely papillate; papillae ca. as high as wide. 2n = 24 (Europe).

Phenology: Flowering summer.
Habitat: Roadsides, waste places, open woodlands
Elevation: 0-300 m


V5 355-distribution-map.gif

Introduced; Alta., B.C., Man., N.B., N.S., Ont., P.E.I., Que., Sask., Conn., Idaho, Ill., Ind., Iowa, Maine, Mass., Mich., Minn., N.H., N.J., N.Y., Pa., Vt., Wis., Europe.


Silene chalcedonica is widely cultivated but rarely escapes and probably does not persist.

Selected References


Lower Taxa

... more about "Silene chalcedonica"
John K. Morton +
(Linnaeus) E. H. L. Krause +
Lychnis chalcedonica +
Maltese-cross +, scarlet lychnis +, lychnide de Chalcédoine +  and croix de Jérusalem +
Alta. +, B.C. +, Man. +, N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Conn. +, Idaho +, Ill. +, Ind. +, Iowa +, Maine +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, Pa. +, Vt. +, Wis. +  and Europe. +
0-300 m +
Roadsides, waste places, open woodlands +
Flowering summer. +
in J. Sturm et al., Deutsch. Fl. ed. +
Introduced +
Agrostemma chalcedonica +
Silene chalcedonica +
species +