Silene douglasii var. brachycalyx B. L. Robinson; S. douglasii var. macrocalyx B. L. Robinson; S. douglasii var. monantha (S. Watson) B. L. Robinson; S. douglasii var. multicaulis (Nuttall ex Torrey & A. Gray) B. L. Robinson; S. douglasii var. villosa C. L. Hitchcock & Maguire; S. lyallii S. Watson; S. macrocalyx (B. L. Robinson) Howell; S. monantha S. Watson; S. multicaulis Nuttall ex Torrey & A. Gray

Leaf blades oblanceolate or elliptic to broadly linear, 2-10 cm × 2-9 mm × 0.1-0.5 mm, 5-10 times as long as wide, not fleshy. Inflorescences eglandular, rarely with few stipitate glands. Flowers: calyx usually green, not strongly inflated, (3-)5-8(-10) mm diam. at anthesis, eglandular, rarely with few stipitate glands; petal limb 1-5 mm wide, usually without lateral teeth. 2n = 48.

Flowering summer. Sagebrush, grassy or wooded mountain slopes, alpine meadows, rocky ledges, talus; 0-3200 m; B.C.; Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.