Flora of North America species comparison

1 per caudex branch, arising from center of rosette near ground surface, 0.5–1 dm, puberulent proximally, trichomes (scattered), simple, 0.02–0.1 mm, similarly pubescent distally.

usually 2–5 per caudex branch, arising from margin of rosette, elevated above ground surface on woody base, 0.8–2.5(–4) dm, glabrous throughout.

blade oblong-oblanceolate, 1–2 mm wide, margins entire, ciliate distally, trichomes (simple), 0.02–0.1 mm, surfaces glabrous.

blade linear to narrowly oblanceolate, 1.2–2.5 mm wide, margins entire, ciliate proximally, trichomes (simple), 0.3–0.7 mm, surfaces glabrous or sparsely pubescent, trichomes short-stalked, 2- or 3-rayed, 0.2–0.5 mm.

3–7, not concealing stem;

blade auricles absent, surfaces of distalmost leaves glabrous.

2–5(–9), not concealing stem;

blade auricles 0.2–0.5 mm, surfaces of distalmost leaves glabrous.

4–7-flowered, unbranched.

5–12-flowered, usually unbranched.

ascending at anthesis;

sepals glabrous;

petals lavender, 4–5 × 1–1.2 mm, glabrous;

pollen ellipsoid.

divaricate-ascending at anthesis;

sepals glabrous;

petals white to lavender, 4–6 × 1–1.5 mm, glabrous;

pollen ellipsoid.

ascending, straight, 5–9 mm, glabrous.

reflexed, curved, 5–9 mm, glabrous.

ascending, not appressed to rachis, not secund, straight, edges parallel, 2.5–3 cm × 1–1.5 mm;

valves glabrous;

ovules 30–34 per ovary;

style ca. 0.5 mm.

pendent, not appressed to rachis, not secund, straight, edges parallel, 1.8–4.5 cm × 1.5–2 mm;

valves glabrous;

ovules 24–36 per ovary;

style 0.2–0.5 mm.

uniseriate, ca. 1.2 × 0.8 mm;

wing distal or continuous, ca. 0.1 mm wide.

uniseriate, 0.9–1.2 × 0.7–0.9 mm;

not winged.

= 14.