Flora of North America species comparison

erect to ascending, (3–)5–20(–25) cm, entirely glabrous or glabrous proximally, stipitate-glandular distally.

basal leaves abundant, persistent;

cauline leaves in 1–3 pairs, abruptly reduced distal to lowest pair;

basal blades erect, straight or often curved in one direction, filiform, (2–)4–8 cm × 0.5–1 mm, flexuous, herbaceous, apex acute or acuminate to weakly spinose, glabrous, sometimes stipitate-glandular, often glaucous.

1–12(–18)-flowered, open or rarely subcongested cymes.

(2–)5–20 mm, glabrous or stipitate-glandular.

sepals often purplish, 1–3-veined, ovate to ovate-lanceolate, 3–4.7 mm, to 5 mm in fruit, margins broad, apex broadly rounded to barely acute, glabrous or stipitate-glandular;

petals white, spatulate, 6–10 mm, 1.5–2.5 times as long as sepals, apex broadly rounded;

nectaries as depressed transverse cup at base of filaments opposite sepals, 0.3–0.7 × 0.1–0.3 mm.

5–8 mm, valves at least sparsely stipitate-glandular or glabrous.

brown to black, ellipsoid to ovoid with hilar notch, (1.2–)1.5–2(–2.5) mm, tuberculate;

tubercles rounded, elongate.