Silene csereii |
Silene ostenfeldii |
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Balkan campion, Balkan catchfly, biennial campion, silène bisannuel |
taimyr campion, taimyr catchfly |
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Habit | Plants annual or biennial, glabrous and somewhat glaucous; tap-root stout. | Plants perennial, densely cespitose; taproot stout, fleshy; caudex tightly branched. |
Stems | erect, sparingly branched below inflorescence, robust, to 65 cm. |
1–many, erect, simple, slender, 10–30 cm, glandular-pubescent. |
Leaves | basal few, usually withering by time of anthesis, blade spatulate; cauline numerous, 2 per node, blade 1-veined, ovate-lanceolate to oblanceolate, 3–7 cm × 7–30 mm, margins entire, apex acute. |
connate basally, blade ciliate at base, pubescent on both surfaces; basal numerous, ± petiolate, blade linear-oblanceolate, 1–5 cm × 1–5 mm, somewhat fleshy, apex ± acute; cauline in 1–3 pairs, sessile, blade linear to linear-lanceolate, 1–4 cm × 1–3 mm, apex ± acute. |
Inflorescences | many-flowered, open, bracteate; primary branches racemose, elongate, with sessile or shortly pedunculate cymes of 1–6 flowers per node; bracts narrowly lanceolate, 3–12 mm, hyaline-margined, apex acute. |
cymose, terminal, (1–)3-flowered, rarely with 1–2 flowers at proximal nodes, bracteate, bracteolate; bracts and bracteoles leaflike, 2–10 mm. |
Pedicels | ascending, ± straight, 1–2 times calyx, broadening at calyx base. |
usually shorter than calyx, rarely much longer, densely pubescent with purple-septate glandular hairs but not viscid. |
Flowers | calyx often obscurely ca. 20-veined, elliptic, abruptly contracted at base, opening constricted to 1/2 its diam., slightly inflated in flower, 7–10 × 3–4 mm, in fruit tightly enveloping capsule, ovoid, thin, enlarging to 9–13 × 5–7 mm, herbaceous, margins narrow, membranous, dentate with broadly triangular lobes to 1 mm, glabrous, veins obscure, usually purple tinged, without conspicuous, pale commissures, longitudinal, parallel, not obviously reticulate; petals white, clawed, claw equaling calyx, limb deeply 2-fid into 2 spatulate lobes, to 5 mm, appendages ca. 0.5 mm; stamens exserted, to 2 times length of calyx; filaments usually dark purple; stigmas 3, exserted, to 2 times length of calyx. |
calyx prominently 10-veined, elliptic to campanulate, not inflated, not or slightly contracted at mouth, 8–9 × 3–5 mm in flower, 10–12 × 5–6 mm in fruit, to 2 times as long as broad, papery, veins green or purple, densely pubescent, with purple-septate hairs, lobes spreading, lanceolate-triangular, ca. 2 mm, margins purple tinged, round, broad, membranous; corolla white to pink, clawed, ca. 11/4 times longer than calyx, claw equaling calyx, limb not differentiated from claw, obovate, emarginate to 2-lobed, shorter than calyx, appendages 2, ca. 1 mm; stamens equaling petals; styles 5, equaling petals. |
Capsules | ovoid, equaling calyx and sometimes splitting it, opening by 6 recurved, narrowly lanceolate teeth; carpophore ca. 1 mm. |
ovoid-ellipsoid, slightly longer than calyx, opening by 5 recurved teeth; carpophore shorter than 1 mm. |
Seeds | grayish brown, plump, broadly reniform, 0.6–1 mm, with concentric rings of papillae; papillae slightly longer than broad. |
brown, not winged, reniform, angular, less than 1 mm broad, finely papillate. |
2n | = 24. |
= 24, 48, 72. |
Silene csereii |
Silene ostenfeldii |
|
Phenology | Flowering summer. | Flowering early summer. |
Habitat | Cultivated fields, roadsides, waste land | Gravelly tundra, rocky ledges, talus, river outwash, grassy areas |
Elevation | 0-1600 m (0-5200 ft) | 0-1800 m (0-5900 ft) |
Distribution |
CO; CT; IA; ID; IL; IN; MA; MD; ME; MI; MN; MO; MT; NC; ND; NH; NY; OH; PA; SD; VT; WA; WI; WY; AB; BC; MB; ON; QC; SK; Europe [Introduced in North America]
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AK; BC; NT; NU; YT; e Asia (Russian Far East) |
Discussion | Often confused with Silene vulgaris, S. csereii may be readily separated by the long, racemose primary branches of its inflorescence, the elliptic calyx that is constricted at both ends, tightly enclosing the capsule and lacking obvious reticulate venation, and the purple filaments. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Silene ostenfeldii, an amphi-Beringian species, is very similar to S. involucrata subsp. tenella. However, it lacks the wing on the seeds, and its mature calyx tends to be more elliptic than campanulate. It may be confused also with S. sorensenis, but that species has larger seeds and calyces and is a sturdier plant with a denser, longer, somewhat woolly pubescence. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 5, p. 180. | FNA vol. 5, p. 196. |
Parent taxa | Caryophyllaceae > subfam. Caryophylloideae > Silene | Caryophyllaceae > subfam. Caryophylloideae > Silene |
Sibling taxa | ||
Synonyms | Melandrium ostenfeldii, Gastrolychnis ostenfeldii, Gastrolychnis taimyrensis, Gastrolychnis triflora subsp. dawsonii, Lychnis dawsonii, Lychnis ostenfeldii, Lychnis taimyrense, Lychnis triflora subsp. dawsonii, Lychnis triflora var. dawsonii, Melandrium dawsonii | |
Name authority | Baumgarten: Enum. Stirp. Transsilv. 3: 345. (1816) | (A. E. Porsild) J. K. Morton: Sida 21: 888. (2004) |
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