Silene suksdorfii |
Silene hookeri |
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Cascade alpine campion, Cascade alpine catchfly, Cascade catchfly, Suksdorf's catchfly, Suksdorf's silene |
Hooker's campion, Hooker's catchfly, Hooker's Indian pink, Hooker's silene |
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Habit | Plants perennial, cespitose, with decumbent subterranean shoots; taproot stout; caudex branched, woody. | Herbs, perennial; caudex much-branched, thick and woody. | ||||
Stems | numerous, erect, simple, 3–15 cm, pubescent, viscid-glandular distally. |
solitary or numerous, decumbent and rooting at base, becoming erect, 5–14(–25) cm, with gray, soft, curly to retrorsely crispate pubescence, rarely glandular. |
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Leaves | mostly basal, densely tufted; basal numerous, pseudopetiolate, blade narrowly oblanceolate, tapering into base, 0.5–3 cm × 1.5–4 mm, ± fleshy, apex acute, puberulent; cauline in 1–3 pairs, ± sessile, reduced, blade narrowly oblanceolate to linear-lanceolate, 0.7–2 cm × 1–3 mm, apex acute, puberulent. |
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. |
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Inflorescences | flowers terminal, solitary, or in single dichotomy, bracteate; bracts leaflike, 3–15 mm. |
reduced to single, terminal flower or open, (1–)3–5(–9)-flowered cyme, bracteate; bracts leaflike, reduced distally to ca. 1 cm. |
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Pedicels | erect, ca. equaling calyx, viscid glandular-pubescent, hairs with purple septa. |
ascending, straight, 1–6 cm, with a short canescence. |
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Flowers | calyx prominently 10-veined, campanulate, not contracted proximally around carpophore, 10–15 × 5–7 mm, papery, veins parallel, purplish, with pale commissures, with purple-septate glandular hairs (rarely septa not purple), lobes ovate, ca. 2 mm, margins broad, membranous, apex obtuse; corolla off-white or tinged with dusky purple, clawed, claw equaling calyx, broadened distally, limb 2-lobed, 3–5 mm, appendages ca. 1 mm; stamens equaling calyx; styles 3(–4), equaling calyx. |
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. |
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Capsules | equaling calyx, opening by 6 (or 8) teeth; carpophore 2.5–3.5 mm. |
ovoid to oblong, equaling calyx, dehiscing by 6 teeth; carpophore 2–5 mm. |
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Seeds | brown, broadly winged, reniform, 1–2 mm, rugose-tessellate. |
dark brown to black, reniform, ca. 2 mm broad, with concentric rings of small papillae. |
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2n | = 48. |
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Silene suksdorfii |
Silene hookeri |
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Phenology | Flowering summer. | |||||
Habitat | Alpine ridges, gravel slopes, talus | |||||
Elevation | 1600-3000 m (5200-9800 ft) | |||||
Distribution |
CA; OR; WA
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CA; OR
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Discussion | Silene suksdorfii appears to be closely related to S. parryi but differs in its broadly winged seeds, smaller size, cespitose habit, and the prominent purple-septate hairs of the calyx, although the latter occasionally are present in S. parryi. It is very similar to, and in Idaho appears to intergrade with, another alpine species, S. sargentii, which has linear leaves and lacks the purple septa in the hairs and the broad wing on the seeds. It is similar also to S. hitchguirei; see discussion under that species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 5, p. 209. | FNA vol. 5, p. 186. | ||||
Parent taxa | Caryophyllaceae > subfam. Caryophylloideae > Silene | Caryophyllaceae > subfam. Caryophylloideae > Silene | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | B. L. Robinson: Bot. Gaz. 16: 44, plate 6, figs. 9–11. (1891) | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 193. (1838) | ||||
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