Flora of North America species comparison

usually 2–5 per caudex branch, arising from margin of rosette near ground surface, (1–)1.5–4 dm, densely pubescent proximally, trichomes short-stalked, 5–8-rayed, 0.1–0.2 mm, moderately to sparsely pubescent distally.

usually 1 per caudex branch, arising from center of rosette near ground surface, 0.7–3 dm, densely pubescent proximally, trichomes short-stalked, 2–6-rayed, 0.06–0.25 mm, glabrous distally.

blade narrowly oblanceolate, 1.5–3(–5) mm wide, margins entire, ciliate along petiole base, trichomes (simple), to 0.6 mm, surfaces densely pubescent, trichomes short-stalked, 5–8-rayed 0.1–0.2 mm.

blade narrowly oblanceolate, 1–3 mm wide, margins entire, ciliate near petiole base, trichomes (simple and spurred), to 0.4 mm, surfaces sparsely to densely pubescent, trichomes short-stalked, 4–8-rayed, 0.04–0.15 mm.

5–14, not concealing stem;

blade auricles 0.1–0.5 mm, surfaces of distalmost leaves pubescent.

5–9, rarely concealing stem proximally;

blade auricles to 0.3–1 mm, surfaces of distalmost leaves glabrous.

10–30-flowered, usually unbranched.

5–13-flowered, usually unbranched.

ascending at anthesis;

sepals pubescent;

petals usually white, 5–7 × 1–2 mm, glabrous;

pollen ellipsoid.

ascending at anthesis;

sepals pubescent;

petals lavender, 4–5 × 0.5–0.8 mm, glabrous;

pollen spheroid.

ascending to divaricate-ascending, straight, 5–10 mm, pubescent, trichomes branched.

divaricate-ascending, straight, 3–8 mm, glabrous.

ascending to divaricate-ascending, not appressed to rachis, not secund, straight, edges parallel, 3–5.5 cm × 0.9–1.2 mm;

valves glabrous;

ovules 56–84 per ovary;

style 0.1–0.5 mm.

divaricate-ascending, not appressed to rachis, not secund, straight, edges parallel, (2.5–)3–4.7 cm × 1.2–1.7 mm;

valves glabrous;

ovules 78–112 per ovary;

style 0.1–0.5 mm.

uniseriate, 0.8–1 × 0.6–0.9 mm;

wing continuous (rarely absent), to 0.1 mm wide.

uniseriate to sub-biseriate, 1.1–1.4 × 0.7–0.9 mm;

wing continuous, 0.05–0.12 mm wide.

= 14.