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.

1 per plant, arising from center of rosette near ground surface, (1.5–)3–11 dm, glabrous throughout.

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

blade obovate to oblanceolate, (4–)10–40 mm wide, margins serrate or dentate, ciliate-mucronate on teeth, trichomes often minute, surfaces glabrous or sparsely pubescent, trichomes simple, 0.1–0.6 mm.

3–7, not concealing stem;

blade auricles absent, surfaces of distalmost leaves glabrous.

7–15, often concealing stem proximally;

blade auricles 3–12(–17) mm, surfaces of distalmost leaves glabrous.

4–7-flowered, unbranched.

16–45-flowered, sometimes branched.

ascending at anthesis;

sepals glabrous;

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

pollen ellipsoid.

ascending at anthesis;

sepals glabrous;

petals white, 3–5 × 1–1.5 mm, glabrous;

pollen ellipsoid.

ascending, straight, 5–9 mm, glabrous.

suberect to divaricate-ascending, straight to slightly curved, 5–23 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.

divaricate-ascending, not appressed to rachis, rarely somewhat secund, curved, edges parallel, (4–)6–11.7 cm × 1–2 mm;

valves glabrous;

ovules 50–80 per ovary;

style 0.1–0.7(–1) mm.

uniseriate, ca. 1.2 × 0.8 mm;

wing distal or continuous, ca. 0.1 mm wide.

uniseriate, 1.2–2.2 × 0.8–1.4 mm;

wing continuous, 0.1–0.3 mm wide distally.

= 14.