Flora of North America species comparison

erect, (8–)10–25 cm, glabrous or stipitate-glandular.

ascending to erect, 10–18 cm, often glandular-hairy.

basal leaves persistent;

cauline leaves usually in 2–4 pairs, reduced distally;

basal blades spreading to recurved, needlelike, 1–3(–3.5) cm × 0.5–0.7 mm, flexuous to rigid, herbaceous, apex spinose, glabrous to puberulent, not glaucous.

basal leaves persistent;

cauline leaves in 3–5 pairs, reduced distally;

basal blades erect to ± spreading, needlelike, 0.5–1.1(–1.6) cm × 0.5–0.7 mm, rigid, herbaceous, not fleshy, apex blunt to apiculate, glabrous, ± glaucous.

(1–)3–17-flowered, ± open cymes.

(1–)3–7-flowered, ± open cymes.

3–30 mm, glabrous or stipitate-glandular.

0.3–2 mm, stipitate-glandular.

sepals green or purplish, 1–3-veined, lanceolate to ovate-lanceolate, (3.5–)4–6.5 mm, not enlarging in fruit, margins broad, apex narrowly acute to acuminate, glabrous or stipitate-glandular;

petals yellowish white or sometimes brownish to reddish pink, broadly oblong-elliptic to oblanceolate, 4–6.5 mm, 0.9–1.1 times as long as sepals, apex rounded;

nectaries narrowly longitudinally rectangular, apically cleft or emarginate, adjacent to filaments opposite sepals, 1–2 mm.

sepals 1–3-veined, lateral veins less developed, ovate, often broadly so, 1.8–3 mm, to 4.2 mm in fruit, margins broad, apex obtuse or rounded, glabrous;

petals white, elliptic to oblanceolate, 2–4.5 mm, 1.4–1.6 times as long as sepals, apex rounded;

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

4–6 mm, glabrous.

4.5–6 mm, glabrous.

brown, ovoid to suborbicular with hilar notch, 1.2–1.7 mm, papillate, subechinate;

tubercles conical.

blackish purple, suborbicular to broadly ellipsoid with hilar notch, 2.2–2.5(–3) mm, tuberculate;

tubercles rounded, elongate.