Leptasea vespertina Small in N. L. Britton et al., N. Amer. Fl. 22: 153. 1905; Saxifraga bronchialis Linnaeus subsp. vespertina (Small) Piper; S. bronchialis var. vespertina (Small) Rosendahl

Plants forming loose mats, (stems trailing), not stoloniferous, rhizomatous. Leaves cauline (crowded proximally); petiole absent; blade spatulate, unlobed or minutely 3-toothed or -lobed apically, 4-11 mm, leathery, margins entire, (not cartilaginous), stiffly ciliate, apex rounded or obtuse, mucronate, surfaces glabrous. Inflorescences 3-6-flowered cymes, 2.5-12 cm, pink- to purple-tipped stipitate-glandular; bracts sessile. Flowers: sepals erect, ovate to oblong, margins sparsely ciliate, surfaces glabrous; petals white to cream, yellow-spotted proximally, red- or orange-spotted distally, these often faded in dried specimens, elliptic, 4-6 mm, much longer than sepals; ovary superior. 2n = 26.

Flowering summer. Rocky slopes, ledges, crevices; 100-1800 m; Oreg., Wash.