Flora of North America species comparison

erect, 7–25(–30) cm, densely stipitate-glandular distally.

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

basal leaves persistent;

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

basal blades ascending or often arcuate-spreading, needlelike, (0.5–)1–2.5(–3.5) cm × 0.5–1.5 mm, rigid, herbaceous, apex spinose, glabrous to puberulent, 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.

5–25+-flowered, open cymes.

(1–)3–7-flowered, ± open cymes.

3–25 mm, stipitate-glandular.

0.3–2 mm, stipitate-glandular.

sepals 1–3-veined, lateral veins less developed or all obscure, ovate, 3–4.5 mm, to 6 mm in fruit, margins broad, apex usually obtuse to rounded, abruptly acute, sparsely to densely stipitate-glandular;

petals white, obovate to oblanceolate, 4.5–10 mm, 1.5–3 times as long as sepals, apex rounded;

nectaries as lateral and abaxial rounding, with slight lateral expansion, at base of filaments opposite sepals, 0.3 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.

5–9 mm, glabrous.

4.5–6 mm, glabrous.

yellowish tan to gray, ellipsoid-oblong, 1.8–2.5(–3.2) mm, tuberculate;

tubercles rounded, elongate.

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

tubercles rounded, elongate.

= 22.