Silene noctiflora |
Silene acaulis |
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night-flowering catchfly |
moss campion |
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Habit | Annual with 1-3 simple or branched stems, 2-6 dm. tall, stiff-hairy throughout and glandular-pubescent above. | Cushion-like perennial from a woody root and branched crown, forming dense mats up to 3 dm. broad; flowering stems 3-6 cm. tall. |
Leaves | Leaves opposite, ovate-lanceolate to elliptic-oblanceolate, 5-12 cm. long and up to 4 cm. broad, the lower ones long-petiolate, the upper sub-sessile. |
Leaves mostly basal, staying attached for many years, linear to linear-lanceolate, sessile, 4-10 mm. long, glabrous or scabrous. |
Flowers | Flowers few to several in an open inflorescence, the pedicels 3-30 mm. long; calyx 5u00e2u20acu201clobed, tubular, 15 mm. long at flowering, much enlarged in fruit, 10-nerved, the lobes lance-linear, 5-9 mm. long; petals 5, white to pinkish, glabrous, the claw 12-25 mm. long, auriculate above, the blade 7-10 mm. long, bi-lobed less than half the length; blade appendages 2, 0.5-1.5 mm. long and broad; stamens 10; styles 3. Flowers open at dusk. |
Flowers single, from nearly sessile or with peduncles up to 4 cm. long, usually dioecious; calyx tubular, 5-lobed, 3-10 mm. long, pinkish; petals 5, pink to lavender, 8-12 mm. long, the claw about twice as long as the blade; blade appendages 2, very small or lacking; stamens 10; styles 3. |
Fruits | Capsule 3-celled. |
Capsule 3-celled, opening by 6 teeth. |
Silene noctiflora |
Silene acaulis |
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Flowering time | June-August | June-August |
Habitat | Grain fields and waste areas. | Rock crevices and talus slopes at high elevations in the mountains |
Distribution | Occurring on both sides of the Cascades crest in Washington; Yukon Territory to California, east across North America to the Atlantic Coast.
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Occurring in the Cascades and Olympic Mountains in Washington; Alaska to Oregon, east to the Rocky Mountains, and east across Canada to northeastern North America; circumboreal.
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Origin | Introduced from Europe | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
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