Flora of North America species comparison

erect, 10–20 cm, stipitate-glandular.

erect, (10–)20–40(–100) cm, glabrous to stipitate-glandular.

basal leaves ± deciduous;

cauline leaves (2–)3–5 of equal size distally;

basal blades ascending to ± spreading, narrowly linear, 1.5–3.5 cm × 1–1.5 mm, ± flexuous, ± succulent, apex green, blunt or acute to apiculate, glabrous, not glaucous.

basal leaves sparse or absent;

cauline leaves usually in 5–7 pairs, not significantly reduced;

basal blades ascending, needlelike or narrowly linear, 2–6(–7) cm × 0.5–1 mm, ± rigid, herbaceous to subsucculent, apex blunt to spinose, usually glabrous, not glaucous.

7–40+-flowered, ± open cymes.

10–30(–80)-flowered, diffuse cymes;

branches spreading.

3–20 mm, stipitate-glandular.

15–55 mm, glabrous or stipitate-glandular.

sepals 1–3-veined, lateral pair obscure, ovate, 3–3.8 mm, 4–4.5 mm in fruit, margins broad, apex obtuse to rounded or barely acute, stipitate-glandular;

petals white, narrowly spatulate, 6.6–7.5 mm, 2 times as long as sepals, apex rounded or emarginate;

nectaries as lateral and abaxial rounding of base of filaments opposite sepals, 0.3 mm.

sepals 1–3-veined, ovate to lanceolate or elliptic, 3–4.3 mm, to 5.5 mm in fruit, margins narrow to broad, apex acute to acuminate, glabrous to sparsely stipitate-glandular;

petals white or yellowish, oblanceolate to spatulate, 6–9 mm, 1–1.5 times as long as sepals, apex entire or erose;

nectaries as lateral and abaxial rounding of base of filaments opposite sepals, 0.3–0.4 mm.

4.5–5.5 mm, glabrous.

6–7 mm, glabrous.

black to brown, oblong to pyriform, 1.8–2.4 mm, smooth to tuberculate.

reddish brown to blackish, suborbicular to pyriform or ovoid, 1.3–3.2 mm, tuberculate;

tubercles low, rounded to conic.