Flora of North America species comparison

erect, 10–20 cm, stipitate-glandular.

erect, (3–)10–23 cm, moderately to densely 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 abundant, persistent;

cauline leaves in 5–7 pairs, reduced distally;

basal blades spreading to arcuate-spreading, needlelike, 0.8–2 cm × 0.4–0.8 mm, ± rigid, not fleshy, herbaceous, apex spinose, glabrous, not glaucous.

7–40+-flowered, ± open cymes.

(1–)3–6-flowered, open cymes.

3–20 mm, stipitate-glandular.

6–25 mm, 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, lateral veins less developed, narrowly elliptic to ovate, 3.5–4 mm, 4.8–5.2 mm in fruit, margins usually broadly winged, scarious, apex broadly acute to obtuse (at least in fruit), glabrous or nearly so;

petals yellowish white, spatulate, 5.8–10 mm, 1.3–1.5 times as long as sepals, apex rounded;

nectaries as lateral and abaxial rounding of base of filaments opposite sepals, 0.2–0.3 mm.

4.5–5.5 mm, glabrous.

7–10 mm, glabrous.

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

brownish black, suborbicular with hilar notch, 2–2.4 mm, tuberculate;

tubercles rounded, elongate.