Flora of North America species comparison

usually 1 per caudex branch, arising from center of rosette near ground surface, 1–4(–5) dm, densely pubescent proximally, trichomes short-stalked, 2–6-rayed, 0.1–0.2 mm, sparsely pubescent 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 narrowly oblanceolate, 1–4(–5) mm wide, margins prominently dentate to subpinnatifid (leaf margins of sterile shoots often entire), ciliate near petiole base, trichomes (simple or 2-rayed), 0.4–0.6 mm, surfaces densely pubescent, trichomes short-stalked, (2–)4–9-rayed, 0.05–0.2 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.

(10–)20–60, often concealing stem throughout;

blade auricles 0.5–3 mm, surfaces of distalmost leaves moderately to sparsely pubescent.

3–7, not concealing stem;

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

8–30-flowered, usually unbranched.

9–23-flowered, unbranched.

divaricate-ascending to pendent at anthesis;

sepals pubescent;

petals usually purple, rarely lavender, 9–14 × 1.5–3 mm, glabrous;

pollen ellipsoid.

ascending at anthesis;

sepals pubescent;

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

pollen spheroid.

reflexed, strongly recurved, 5–15 mm, pubescent, trichomes appressed, branched.

divaricate-ascending, straight, 1.5–7 mm, usually pubescent, rarely glabrous, trichomes appressed, branched.

pendent, not appressed to rachis, not secund, straight to slightly curved, edges parallel, (3.5–)5–8 cm × (1.6–)2–3 mm;

valves pubescent throughout;

ovules 24–42 per ovary;

style 0.5–1 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, 2.5–3.5 × 1.5–2.2 mm;

wing continuous or at both ends, 0.4–0.8 mm wide.

uniseriate, 1.2–1.5 × 1–1.2 mm;

wing continuous, 0.1–0.15 mm wide.

= 14.