Silene hookeri |
Silene dioica |
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Hooker's campion, Hooker's catchfly, Hooker's Indian pink, Hooker's silene |
red campion, red catchfly, silène dioïque |
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Habit | Herbs, perennial; caudex much-branched, thick and woody. | Plants perennial; taproot slender. | ||||
Stems | solitary or numerous, decumbent and rooting at base, becoming erect, 5–14(–25) cm, with gray, soft, curly to retrorsely crispate pubescence, rarely glandular. |
ascending, decumbent at base, branched, shortly rhizomatous, to 80 cm, softly pubescent, ± glandular, at least distally, rarely subglabrous. |
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Leaves | blade spatulate or narrowly lanceolate to oblanceolate, sometimes broadly so, 4–7(–10) cm × 8–12(–20) mm, reduced toward base, apex acute, pubescent on both surfaces, especially on midrib; subterranean bractlike, papery. |
sessile at mid and distal stem, petiolate to spatulate proximally; petiole equaling or longer than blade of basal leaves; blade ovate to elliptic, 3–13 cm × 10–50 mm (not including petiole), apex acute to acuminate, sparingly pubescent, densely so on abaxial midrib. |
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Inflorescences | reduced to single, terminal flower or open, (1–)3–5(–9)-flowered cyme, bracteate; bracts leaflike, reduced distally to ca. 1 cm. |
dichasial cymes, several- to many-flowered, open, bracteate; bracts lanceolate, 4–20 × 2–7 mm, herbaceous, softly hairy throughout with long-septate hairs, not glandular, or with some glandular hairs. |
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Pedicels | ascending, straight, 1–6 cm, with a short canescence. |
ascending, 0.2–3 cm, usually shorter than calyx. |
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Flowers | calyx 10-veined, broadly tubular in flower, 12–25 5–8 mm, turbinate in fruit and swelling in middle to ca. 10 mm broad, canescent, rarely sparsely pubescent or glandular; lobes lanceolate, 4–7 mm, with narrow, membranous margins, apex acute; corolla coral pink or white, clawed, claw equaling calyx; limb 4-lobed, usually deeply so, rarely 2-lobed with smaller lateral teeth, lobes 7–22 mm, appendages 2, linear, 1.5–3.5 mm (absent in subsp. bolanderi); stamens slightly longer than corolla claw; stigmas 3, slightly longer than corolla claw. |
unisexual, some plants having only staminate flowers, others having only pistillate flowers, 20–25 mm diam.; calyx 8–12-veined, campanulate, narrowly so in staminate flowers, broadly in pistillate, 10–15 × to 7 mm in flower, 11 mm broad in fruit, herbaceous, margins dentate, softly pubescent, lobes 5, erect, lanceolate, 2–3 mm; petals bright pink, clawed, claw equaling or longer than calyx, limb spreading horizontally, broadly obovate, unlobed or 2-lobed, to 12 × 12 mm, appendages 4, ca. 1 mm; stamens and stigmas equaling petal claw; styles 5. |
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Capsules | ovoid to oblong, equaling calyx, dehiscing by 6 teeth; carpophore 2–5 mm. |
broadly ovoid to globose, equaling and often splitting calyx, opening by 5 (splitting into 10) revolute teeth; carpophore absent. |
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Seeds | dark brown to black, reniform, ca. 2 mm broad, with concentric rings of small papillae. |
dark brown to black, broadly reniform, plump, 1–1.6 mm, densely and evenly papillate. |
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2n | = 24. |
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Silene hookeri |
Silene dioica |
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Phenology | Flowering summer. | |||||
Habitat | Woodlands, hedges, gardens, riverbanks, open waste places | |||||
Elevation | 0-500 m (0-1600 ft) | |||||
Distribution |
CA; OR
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CT; IA; IL; MA; MD; ME; MT; NH; NJ; NY; OH; OR; PA; RI; SD; VT; WA; WI; BC; MB; NB; NF; NS; ON; QC; Europe [Introduced in North America]
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Silene dioica is closely related to S. latifolia and completely interfertile with it. The two species hybridize wherever they grow in close proximity, and the offspring (S. hampeana Meusel & K. Werner) usually have pale pink flowers. Silene dioica and S. latifolia are difficult to separate in herbarium material unless flower color has been noted. The characters that distinguish S. dioica are the usually dense, long, and soft pubescence covering at least the distal portion of the plant; the broad, almost globose, thin, and brittle capsule with revolute teeth; and the softer, thinner, usually broader leaves. Occasionally, double-flowered plants are encountered as garden escapes. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 5, p. 186. | FNA vol. 5, p. 181. | ||||
Parent taxa | Caryophyllaceae > subfam. Caryophylloideae > Silene | Caryophyllaceae > subfam. Caryophylloideae > Silene | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Lychnis dioica, Lychnis rubra, Melandrium dioicum, Melandrium dioicum subsp. rubrum, Melandrium rubrum | |||||
Name authority | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 193. (1838) | (Linnaeus) Clairville: Man. Herbor. Suisse, 146. (1811) | ||||
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