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17c. Silene douglasii Hooker var. rupinae Kephart & Sturgeon, MadroƱo. 40: 96, fig. 2. 1993.
Leaf blades very narrow, linear, 1.5-5 mm wide, typically over 15 times longer than wide, not fleshy. Inflorescences often glandular-pubescent. Flowers: calyx green, not strongly inflated, (3-)5-8(-10) mm diam. at anthesis, often glandular-pubescent; petal limb 1-5 mm wide, with lateral teeth on each side.
Flowering summer. Rocky crevices, cliff ledges; 0-100 m; Oreg., Wash.
Variety rupinae is found along the Columbia River gorge.
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