Silene suksdorfii
Silene stellata
Cascade alpine campion, Cascade alpine catchfly, Cascade catchfly, Suksdorf's catchfly, Suksdorf's silene
starry campion, widow's frill
numerous, erect, simple, 3–15 cm, pubescent, viscid-glandular distally.
several, simple proximal to inflorescence, 30–80 cm, puberulent, becoming subglabrous near base.
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.
withering proximally, in whorls of 4, ± sessile to short-petiolate, largest in mid-stem region;
blade lanceolate to ovate-lanceolate, 3–10 cm × 4–40 mm, apex acuminate, puberulent on both surfaces, sparsely so adaxially.
flowers terminal, solitary, or in single dichotomy, bracteate;
bracts leaflike, 3–15 mm.
paniculate, open, bracteate, bracteolate, branches elongate, puberulent;
bracts and bracteoles linear-lanceolate, 2–15 mm.
erect, ca. equaling calyx, viscid glandular-pubescent, hairs with purple septa.
straight, often with 1 or 2 pairs of bracteoles, slender, 1/2–3 times calyx, glabrous or scabrous-puberulous.
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 obscurely 10-veined, broadly campanulate, becoming obtriangular in fruit, 7–11 × 6–10 mm, herbaceous, margins dentate, very narrow, membranous, sparsely puberulent, lobes broadly triangular, 2–3 mm;
corolla white, ca. 2 times longer than calyx, limb obtriangular, narrowed into claw, divided ca. 1/2 its length into 4–12 lobes, appendages absent;
stamens equaling petals;
styles 3, longer than petals.
equaling calyx, opening by 6 (or 8) teeth;
carpophore 2.5–3.5 mm.
globose, opening by 3 broadly triangular teeth;
carpophore 2–3 mm.
brown, broadly winged, reniform, 1–2 mm, rugose-tessellate.
dark brown, reniform, ca. 1 mm, papillate.
= 48.
= (34), 48.
Silene suksdorfii
Silene stellata
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.)
Silene stellata is a very distinct species with its broadly lanceolate leaves in groups of four at each node, and its brilliant white, multilobed petals. Two varieties are recognized by some workers: var. stellata, with glabrous pedicels; and var. scabrella, with scabrous pedicels. The former tends to have longer, more slender pedicels and be more common towards the northeast, whereas the latter tends to be more western. The correlation of characters and distribution is poor, however, and intermediate plants are often encountered.
Silene stellata was collected near the Grand River, Cambridge, Ontario, in 1941, but was probably introduced there and has not been seen since.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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