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.

usually 1 per caudex branch, arising from center of rosette near ground surface, 1.5–3.5 dm, densely pubescent proximally, trichomes short-stalked, 5–10-rayed, to 0.7 mm, sparsely pubescent or glabrous 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 narrowly oblanceolate, 1–3 mm wide, margins entire, ciliate proximally, trichomes to 0.7 mm, surfaces densely pubescent, trichomes short-stalked, 5–10-rayed, 0.08–0.25 mm.

6–10, not concealing stem;

blade auricles absent, surfaces of distalmost leaves densely pubescent.

4–9, not concealing stem;

blade auricles 0.5–2 mm, surfaces of distalmost leaves pubescent.

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

8–25-flowered, usually 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 to purple, 4–5 × ca. 1 mm, glabrous;

pollen spheroid.

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

ascending to divaricate-ascending, straight, 3–7 mm, pubescent, trichomes appressed, 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, straight or curved, edges parallel, 4–6.2 cm × 1.2–1.8 mm;

valves glabrous;

ovules 48–68 per ovary;

style 0.1–0.2 mm.

biseriate, 5–6 × 4–5 mm;

wing continuous, 1.8–2.5 mm wide.

uniseriate, 1–1.5 × 0.8–1.2 mm;

wing continuous, 0.1–0.15 mm wide.

= 14.