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barestem campion, naked campion, sticky catchfly, western fringe catchfly

silène arméria, sweet william silene, sweet-william catchfly

Habit Plants perennial; taproot thick; caudex erect, branched, thick and woody, producing tufts of leaves. Plants annual, glabrous throughout, ± glaucous, sometimes glutnous in distal parts; taproot slender.
Stems

erect, branched distally, with 2–4 pairs of reduced leaves, 15–50 cm; flowering shoots usually subscapose, coarsely pubescent with hairs colorless, septate, and long, viscid-glandular, especially distally.

simple, branched in inflorescence, (10–)20–40(–70) cm.

Leaves

mostly basal;

basal long-petiolate, blade oblanceolate to elliptic, 6–15 cm × 10–30 mm, narrowed to base, not fleshy;

cauline few, sessile, reduced distally, blade lanceolate, 0.8–4 cm × 3–8 mm, not fleshy.

basal withering before flowering, blade lanceolate-spatulate, 2–5 cm;

cauline sessile to amplexicaulous, blade lanceolate to ovate or elliptic, 1–6 cm × 5–25 mm, apex acute.

Inflorescences

thyrsate, subscapose, rarely simple, (3–)5–12(rarely more)-flowered, open, bracteate, bracteolate, densely pubescent, glandular, viscid; alternate branches often suppressed or developing unevenly;

proximal nodes often with single flower;

bracts and bracteoles resembling stem leaves but much reduced.

cymose, bracteate;

cyme capitate or with flowers clustered at end of slender branches;

bracts lanceolate-acicular, 2–10 mm.

Pedicels

1/4–2 times length of calyx.

0.1–0.5 cm.

Flowers

calyx prominently 10-veined, veins parallel, those of lobes broadened distally, tubular in flower, 10–13 × 2.5–4 mm, campanulate-ovate in fruit, broadest near middle and contracted towards mouth, not contracted proximally, 12–18 × 5–8 mm, with pale commissures, lobes 5, erect, narrowly lanceolate, 4–6 mm, margins narrow, membranous proximally, apex blunt, with glandular hairs;

petals 11/2–2 times longer than calyx tube;

corolla pink, clawed, claw equaling calyx tube, limb obovate, deeply 2-lobed, 5–10 mm, appendages 2, linear, ca. 1.5 mm;

stamens exserted, shorter than petals;

styles 3–5, included in calyx, ± equaling calyx or corolla.

calyx usually purple tinged, 10-veined, elongate, clavate, lobed, constricted proximally into narrow tube, 13–17 × 2.5–4 mm, rather membranous;

lobes ovate-triangular, ca. 1 mm, apex obtuse;

petals pink (rarely white), unlobed, limb obovate, ca. 5 mm, base cuneate into claw 6–8 mm, auricles absent, appendages linear to lanceolate, 2–3 mm, apex acute;

stamens slightly longer than petal claws;

styles 3(–4), exserted.

Capsules

conic to ellipsoid, equaling calyx lobes, opening by 6–10 recurved teeth;

carpophore 1–2 mm.

oblong, 7–10 mm, opening by 6 (or 8) spreading teeth;

carpophore 7–8 mm, glabrous.

Seeds

dark brown, reniform, 1–1.5 mm, prominently papillate;

papillae larger around margins.

dark brown, reniform-rotund, less than 1 mm diam., rugose.

2n

= 48.

= 24 (Europe).

Silene nuda

Silene armeria

Phenology Flowering summer. Flowering summer.
Habitat Scrubby grasslands and openings in woodland and coniferous forests Waste places, disturbed ground
Elevation 1100-2300 m (3600-7500 ft) 0-1200 m (0-3900 ft)
Distribution
from FNA
CA; NV; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; CT; DC; DE; FL; IL; IN; KY; MA; MD; ME; MI; MN; MO; NC; NH; NJ; NY; OH; OR; PA; SC; UT; VA; VT; WA; WI; WV; BC; NB; NS; ON; QC; Europe [Introduced in North America]
[WildflowerSearch map]
Discussion

Silene nuda may be confused with the other scapose species, S. scaposa, but S. nuda has larger, more conspicuous petals that are one and one-half to two times as long as the calyx tube. It is found in the Sierra Nevada and southern Cascades. The Nevada populations tend to grow in drier situations and on saline flats.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

The long-tubular, clavate calyx enclosing the unusually long carpophore helps to distinguish Silene armeria. It is an occasional and adventive garden escape.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 5, p. 195. FNA vol. 5, p. 174.
Parent taxa Caryophyllaceae > subfam. Caryophylloideae > Silene Caryophyllaceae > subfam. Caryophylloideae > Silene
Sibling taxa
S. acaulis, S. antirrhina, S. aperta, S. armeria, S. bernardina, S. bridgesii, S. campanulata, S. caroliniana, S. chalcedonica, S. conica, S. coniflora, S. conoidea, S. coronaria, S. csereii, S. dichotoma, S. dioica, S. douglasii, S. drummondii, S. flos-cuculi, S. gallica, S. grayi, S. hitchguirei, S. hookeri, S. invisa, S. involucrata, S. kingii, S. laciniata, S. latifolia, S. lemmonii, S. marmorensis, S. menziesii, S. nachlingerae, S. nivea, S. noctiflora, S. occidentalis, S. oregana, S. ostenfeldii, S. ovata, S. parishii, S. parryi, S. pendula, S. petersonii, S. plankii, S. polypetala, S. pseudatocion, S. rectiramea, S. regia, S. repens, S. rotundifolia, S. sargentii, S. scaposa, S. scouleri, S. seelyi, S. serpentinicola, S. sibirica, S. sorensenis, S. spaldingii, S. stellata, S. subciliata, S. suecica, S. suksdorfii, S. thurberi, S. uralensis, S. verecunda, S. virginica, S. viscaria, S. vulgaris, S. williamsii, S. wrightii
S. acaulis, S. antirrhina, S. aperta, S. bernardina, S. bridgesii, S. campanulata, S. caroliniana, S. chalcedonica, S. conica, S. coniflora, S. conoidea, S. coronaria, S. csereii, S. dichotoma, S. dioica, S. douglasii, S. drummondii, S. flos-cuculi, S. gallica, S. grayi, S. hitchguirei, S. hookeri, S. invisa, S. involucrata, S. kingii, S. laciniata, S. latifolia, S. lemmonii, S. marmorensis, S. menziesii, S. nachlingerae, S. nivea, S. noctiflora, S. nuda, S. occidentalis, S. oregana, S. ostenfeldii, S. ovata, S. parishii, S. parryi, S. pendula, S. petersonii, S. plankii, S. polypetala, S. pseudatocion, S. rectiramea, S. regia, S. repens, S. rotundifolia, S. sargentii, S. scaposa, S. scouleri, S. seelyi, S. serpentinicola, S. sibirica, S. sorensenis, S. spaldingii, S. stellata, S. subciliata, S. suecica, S. suksdorfii, S. thurberi, S. uralensis, S. verecunda, S. virginica, S. viscaria, S. vulgaris, S. williamsii, S. wrightii
Synonyms Lychnis nuda, S. insectivora, S. nuda subsp. insectivora, S. pectinata, S. pectinata var. subnuda Atocion armeria
Name authority (S. Watson) C. L. Hitchcock & Maguire: Revis. N. Amer. Silene, 45. (1947) Linnaeus: Sp. Pl. 1: 420. (1753)
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