Flora of North America species comparison

1–3 per caudex branch, arising laterally proximal to sterile shoots near ground surface, ca. 2.5 dm, densely pubescent proximally, trichomes simple and 2-rayed, 0.25–0.7 mm, glabrescent distally.

usually 1 per caudex branch, arising from center of rosette near ground surface, 0.5–2 dm, densely pubescent proximally, trichomes short-stalked, 4–10-rayed, 0.07–0.15 mm, sparsely to densely pubescent distally.

blade oblanceolate to obovate, 2.5–5 mm wide, margins entire, ciliate along petiole, trichomes (simple), to 1 mm, surfaces densely pubescent, trichomes simple and short-stalked, 2- or 3-rayed, 0.25–0.5 mm.

blade narrowly oblanceolate, 1.5–4 mm wide, margins entire, not ciliate, surfaces densely pubescent, trichomes short-stalked, 6–14-rayed, 0.07–0.15 mm.

4–6, not concealing stem;

blade auricles ca. 1 mm, surfaces of distalmost leaves sparsely pubescent.

4–10, often concealing stem proximally;

blade auricles absent, surfaces of distalmost leaves densely pubescent.

6–10-flowered, unbranched.

10–18-flowered, unbranched.

ascending at anthesis;

sepals pubescent;

petals lavender, 4–5 × 1–1.5 mm, glabrous;

pollen ellipsoid.

ascending at anthesis;

sepals pubescent;

petals purple, 9–14 × 2–4 mm, glabrous;

pollen ellipsoid.

ascending, straight, 6–10 mm, glabrous or sparsely pubescent, trichomes subappressed, branched.

divaricate-ascending, straight, 5–14 mm, pubescent, trichomes appressed, branched.

divaricate-ascending, not appressed to rachis, not secund, slightly curved, edges parallel, 4–5 cm × ca. 1 mm;

valves glabrous;

ovules ca. 64 per ovary;

style ca. 0.2 mm.

divaricate-ascending, not appressed to rachis, not secund, straight, edges parallel, 4–6 cm × 2.5–4 mm;

valves glabrous;

ovules 26–34 per ovary;

style (0.7–)1–2 mm.

uniseriate, (none mature).

uniseriate, 1.9–2.7 × 1.5–2.2 mm;

wing continuous, 0.3–0.7 mm wide.