Flora of North America species comparison

usually 1 per caudex branch, arising from center of rosette near ground surface, (0.6–)1–4.5 dm, densely pubescent proximally, trichomes short-stalked, 4–8-rayed, 0.1–0.4 mm, similarly pubescent distally.

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.

blade linear to linear-oblanceolate, 2–4(–6) mm wide, margins entire, usually ciliate at petiole base, trichomes (simple or spurred), to 1.5 mm, surfaces densely pubescent, trichomes short-stalked, 4–8-rayed, 0.1–0.4 mm.

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.

6–10, not concealing stem;

blade auricles absent, surfaces of distalmost leaves densely pubescent.

4–6, not concealing stem;

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

(5–)10–25-flowered, usually unbranched.

6–10-flowered, unbranched.

divaricate at anthesis;

sepals pubescent;

petals light purple to lavender, 6–9 × 1.5–2.5 mm, glabrous;

pollen ellipsoid.

ascending at anthesis;

sepals pubescent;

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

pollen ellipsoid.

reflexed, strongly curved at base, 2–10 mm, pubescent, trichomes appressed, branched.

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

strongly reflexed, sometimes appressed to rachis, often secund, straight, edges parallel, (1.8–)2.5–4.5 cm × 5–8 mm;

valves glabrous;

ovules 24–62 per ovary;

style 0.2–0.6 mm.

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.

biseriate, 5–6 × 4–5 mm;

wing continuous, 1.8–2.5 mm wide.

uniseriate, (none mature).

= 14.