Silene oregana |
Silene campanulata |
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Oregon campion, Oregon catchfly, Oregon silene |
bell catchfly, campanulate campion, red mountain catchfly, slender campion |
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Habit | Plants perennial; taproot stout; caudex simple or sparsely branched, woody. | Plants perennial; taproot stout; caudex much-branched, woody, producing many erect-to-straggling, little-branched flowering shoots. | ||||
Stems | usually simple proximal to inflorescence, 30–50(–70) cm, puberulent and shortly stipitate-glandular, especially distally. |
erect, 5–40 cm, softly pubescent to scabrous, eglandular or viscid-glandular, especially distally, very rarely glabrous, with several pairs of leaves equaling or shorter than internodes. |
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Leaves | 2 per node, gradually reduced distally; basal petiolate, blade oblanceolate, spatulate, 5–9 cm × 7–15 mm (including petiole), apex acute to obtuse, usually glabrous adaxially, sparsely pubescent abaxially; cauline in 4–6 pairs, blade linear-lanceolate, 1–6(–8) cm × 2–6 mm, puberulent and shortly stipitate-glandular. |
sessile, or basal with short pseudopetiole; blade linear to lanceolate or broadly ovate, base round to cuneate, apex acute to shortly acuminate, puberulent on both surfaces, sometimes glandular. |
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Inflorescences | thyrsate, 3–25-flowered, open, bracteate, pedunculate, stipitate-glandular, viscid; bracts narrowly lanceolate, 2–25 mm, apex acuminate. |
usually with single dichotomy, rarely double, open, bracteate, branches often elongate, flowers 1 per node; bracts foliaceous. |
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Pedicels | ascending. |
sharply reflexed at base, especially after anthesis, equaling calyx. |
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Flowers | calyx prominently 10-veined, narrowly campanulate, umbilicate, somewhat clavate and constricted below middle around carpophore, 9–15 × 3–4 mm in flower, broadening to 7 mm in fruit, membranous, shortly stipitate-glandular, veins parallel, slender, tinged dark red, with pale commissures, lobes ovate-lanceolate, obtuse, 2–3 mm, margins scarious; corolla creamy white, sometimes pink tinged, clawed, claw equaling calyx, glabrous, broadening only slightly into limb 3–8 mm, limb with 4–6 linear lobes, some splitting to 10 linear segments, appendages 4–6, linear, 1–1.5 mm, apex acute; stamens ca. equaling petals; filaments glabrous; stigmas 3(–5), ca. equaling petals. |
nodding; calyx obscurely 10-veined, broadly campanulate, lobed, 6–8 mm, enlarging to 13–16 mm in fruit, herbaceous, usually with short, dense pubescence throughout, often glandular-viscid, veins green, rarely purplish tinged, conspicuous pale commissures absent; lobes ovate-triangular, 1/2 to equaling tube, herbaceous; petals creamy white, often greenish abaxially, rarely pink tinged to dusky pink (subsp. campanulata), clawed, to 2 times calyx, claw villose, limb deeply divided and fan-shaped with many narrow, linear lobes, lobes rapidly curling, margins deeply divided or erose, appendages 2–4, to 2 mm; stamens exserted; filaments hairy at base; styles 3, to 2 times calyx. |
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Capsules | ellipsoid, slightly longer than calyx, opening by 6 (or 8 or 10) very brittle teeth; carpophore 2–4 mm. |
ovoid, ca. equaling calyx and often splitting it, opening by 6 broadly triangular teeth; carpophore 1–2.5 mm. |
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Seeds | brown, ± reniform, angular, glossy, shallowly tuberculate. |
brown, reniform, 2–2.5 mm broad, coarsely and ± evenly papillate; papillae ca. as long as broad. |
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2n | = 48. |
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Silene oregana |
Silene campanulata |
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Phenology | Flowering summer. | |||||
Habitat | Dry, grassy slopes, rocky areas, open woodlands and forests | |||||
Elevation | 1500-2800 m (4900-9200 ft) | |||||
Distribution |
CA; ID; MT; NV; OR; UT; WA; WY
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CA; OR
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Discussion | The creamy white laciniate petals are the best field (and herbarium) guide to distinguishing this species from Silene parryi and S. scouleri, both of which have 2–4-lobed petals that are usually dingy cream to greenish or purple tinged. (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. 196. | FNA vol. 5, p. 176. | ||||
Parent taxa | Caryophyllaceae > subfam. Caryophylloideae > Silene | Caryophyllaceae > subfam. Caryophylloideae > Silene | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | S. filisecta, S. gormanii, S. oregana var. filisecta | |||||
Name authority | S. Watson: Proc. Amer. Acad. Arts 10: 343. (1875) | S. Watson: Proc. Amer. Acad. Arts 10: 341. (1875) | ||||
Web links |