Flora of North America species comparison

erect, (10–)20–40(–70) cm, glabrous to stipitate-glandular.

basal leaves sparse or absent;

cauline leaves usually in 5–12+ pairs, not significantly reduced;

basal blades ascending to arcuate-spreading or recurved, needlelike or narrowly linear, (0.7–)2–6(–7) cm × 0.8–2 mm, ± rigid, herbaceous to subsucculent, apex blunt to spinose, glabrous, not glaucous.

mostly in 5–8 pairs, blade ± ascending throughout, 0.8–1.2 mm wide.

3–20(–30)-flowered, ± compact cymes;

branches ascending to erect.

branches erect to ascending.

3–45 mm, glabrous or stipitate-glandular.

sepals 1–3-veined, ovate to lanceolate or elliptic, 4.5–7.2 mm, to 8 mm in fruit, margins narrow to broad, apex acute to acuminate, glabrous to sparsely stipitate-glandular;

petals white or yellowish, oblanceolate to spatulate, 6–11 mm, 1–2 times as long as sepals, apex entire or erose;

nectaries thickened, molarlike, apically 2-lobed, 1–1.5 mm, or narrowly longitudinally rectangular, truncate, 0.7–0.8 mm, densely minutely pubescent with erect to spreading hairs.

sepals 4.5–7.2 mm, to 8 mm in fruit, ± glabrous;

nectaries thickened, molarlike, apically 2-lobed, 1–1.5 mm.

6–8 mm, glabrous.

greenish or reddish brown to blackish, suborbicular to pyriform or ovoid, 1.3–3.2 mm, tuberculate, sometimes echinate on abaxial ridge;

tubercles low, rounded to conic.