Stellaria jamesiana Torrey, Ann. Lyceum Nat. Hist. New York 2: 169. 1827; Alsine glutinosa A. Heller; Arenaria jamesiana (Torrey) Shinners

Rhizomes with spherical or elongate tuberous thickenings 0.5-2.5 cm.  Stems 4-angled, 12-45(-60) cm, glabrous or stipitate-glandular throughout or at least in inflorescence, often densely so. Leaf blades linear to linear-lanceolate or broadly lanceolate, (1.5-)2-10(-15) × 0.2-1.5(-2) cm, margins flat to briefly revolute, ± smooth or granular to serrulate, glabrous or stipitate-glandular. Inflorescences open cymes, flowers often proliferating with age. Pedicels recurved to reflexed from base in fruit, uniformly stipitate-glandular. Flowers: sepals lanceolate to narrowly ovate, 3-5.5(-7) × 0.8-2 mm, stipitate-glandular, often densely so; petals 7-9.5 × 3-4 mm, apex notch 1-2 mm deep, lobes broadly rounded; anthers 10, purple; styles 3.5-4.5 mm; stigmas terminal, 0.1-0.2 mm. Capsules 4.5-5 mm. Seeds 1-3, reddish brown, broadly elliptic, ± plump, 2-3.4 mm; tubercles conic to elongate, rounded. 2n = 96.

Flowering summer. Meadows, sagebrush-grasslands, dry understory of aspen and coniferous forests; 600-3400 m.; Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Tex., Utah, Wash., Wyo.