Utah or tufted frasera

Frasera utahensis M. E. Jones; Leucocraspedum utahense (M. E. Jones) Rydberg; Swertia utahensis (M. E. Jones) H. St. John

Herbs monocarpic, (4–)7–15 dm, glabrous. Stems usually 1. Leaf blades white-margined; basal linear-lanceolate to nar­rowly oblanceolate, 5–20 × 0.7–2(–3) cm; cauline leaves opposite, distal blades lan­ceolate. Inflorescences diffuse. Flowers: calyx 3–6 mm; corolla greenish white to greenish yellow, dark green- or purple-dotted, 7–12 mm, lobes elliptic-ovate, apex abruptly acuminate; androecial corona ± fringed; style slender, distinct; nectaries 2 per lobe, in closely paired, ± separate foveae, foveae opening distal to nectaries, into a single widely ovate-triangular differentiated area on the corolla surface shaped ± like the spade on playing cards, rim ± sparsely short- to long-fringed.

Flowering late spring–summer. Desert scrub, dry, open pinyon-juniper woods, often on pink sand dunes; 1200–2200 m; Ariz., Colo., N.Mex., Utah.

The only specimen from Nevada identified as Frasera paniculata has been reidentified as F. albomarginata var. albomarginata in studies for this flora.