King's yellow flax
From eastern Nevada to Wyoming and northwest Colorado
Open flats and slopes, usually barren, rocky or clayish places, from 5,000 to 11,000 feet
Mostly alternate, narrowly lanceolate, up to 1 inch long
Linum kingii, a perennial, is a low-growing, somewhat variable species that branches freely and has overlapping, tightly clustered leaves; it is found in medium to high elevation areas from eastern Nevada to southwestern Wyoming.
All plant parts are hairless. Leaves and stems are greyish-green (glaucous). Stems branch from the base and are held a range of angles, from erect to prostrate. Leaves may be opposite towards the base but are otherwise alternate; they are narrow, with a single, faint vein, and are closely-spaced.
Flowers are arranged in a compact panicle. The five sepals are purplish-green, pointed but not bristle-tipped, and lined by a few tiny glandular teeth, while the five petals are all-yellow, lacking any darker marks. Petals are markedly narrower at the base. The five styles are not fused, and are topped by yellow, head-shaped stigmas. Anthers are relatively large.