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 2–5 per caudex branch, arising from margin of rosette near ground surface, or arising laterally proximal to sterile shoots, 0.2–0.8 dm, pubescent proximally, trichomes simple and short-stalked, 2- or 3-rayed, to 0.4 mm, glabrescent 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 linear, 0.8–1.5 mm wide, margins entire, ciliate, trichomes (simple and spurred), to 0.8 mm, surfaces moderately pubescent, trichomes short-stalked, 2–4-rayed, 0.05–0.4 mm.

5–14, not concealing stem;

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

2–4, not concealing stem;

blade auricles absent, surfaces of distalmost leaves pubescent.

10–30-flowered, usually unbranched.

2–5-flowered, unbranched.

ascending at anthesis;

sepals pubescent;

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

pollen ellipsoid.

erect at anthesis;

sepals pubescent;

petals white, 3.5–5 × 0.7–1 mm, glabrous;

pollen ellipsoid.

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

erect to ascending, straight, 2–7 mm, usually pubescent, rarely glabrous, trichomes subappressed, branched.

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.

erect to ascending, often appressed to rachis, not secund, straight, edges parallel, (1.3–)2–3.3 cm × 4–5 mm;

valves glabrous;

ovules 8–12 per ovary;

style 0.05–0.4 mm.

uniseriate, 0.8–1 × 0.6–0.9 mm;

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

uniseriate, 3–5 × 2.5–4.5 mm;

wing continuous, 0.8–2 mm wide distally.

= 14.