Inyo frasera

Swertia albomarginata (S. Watson) Kuntze var. purpusii Jepson; S. puberulenta (Davidson) Jepson

Herbs monocarpic, 1–3(–5) dm; stems and adaxial leaf surfaces puberulent. Stems 1–several. Leaf blades narrowly white-margined; basal oblanceolate or narrowly obovate to elliptic-oblong, 2–12 × 0.6–2.2 cm; cauline leaves opposite or rarely some whorled, distal blades oblong to lanceolate. Inflorescences diffuse, branching near base of main stem. Flowers: calyx 5–12 mm; corolla greenish white, copiously blue-purple-dotted, 7–13 mm, lobes oblong-obovate, apex abruptly acuminate; androecial corona poorly developed, ± fringed; style slender, distinct; nectaries 2 per corolla lobe in a single, basally 2-lobed fovea, fovea opening distal to nectaries, into a single differentiated area on the corolla surface that is oblong to elliptic, ± widened at distal end, proximal side of rim prolonged into a scale 2 mm, fringed ± 1/2 its length, distal side of rim long-fringed.

Flowering summer. Dry, open coniferous woods; 1700–3400 m; Calif., Nev.

Frasera puberulenta is endemic to high elevations in Inyo and Mono counties in California and Mineral and Esmeralda counties in Nevada.