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, 0.5–1.5(–2) dm, densely pubescent proximally, trichomes short-stalked, 4–8-rayed, 0.07–0.4 mm, usually sparsely pubescent distally, rarely glabrous.

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, 0.7–3(–5) mm wide, margins entire, sometimes ciliate proximally, trichomes to 0.4 mm, surfaces densely pubescent, trichomes short-stalked, 5–8-rayed, 0.05–0.25 mm.

4–6, not concealing stem;

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

3–7, not concealing stem;

blade auricles 0.5–1.5 mm, surfaces of distalmost leaves usually pubescent, rarely glabrous.

6–10-flowered, unbranched.

9–23-flowered, unbranched.

ascending at anthesis;

sepals pubescent;

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

pollen ellipsoid.

ascending at anthesis;

sepals pubescent;

petals lavender to purplish, 3.5–5 × 0.8–1.2 mm, glabrous;

pollen spheroid.

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

divaricate-ascending, straight, 1.5–7 mm, usually pubescent, rarely glabrous, 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, 1.7–3.5(–4.5) cm × 1–1.5 mm;

valves glabrous;

ovules 32–44 per ovary;

style 0.05–0.2 mm.

uniseriate, (none mature).

uniseriate, 1.2–1.5 × 1–1.2 mm;

wing continuous, 0.1–0.15 mm wide.