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 plant, arising from center of rosette near ground surface, (2–)3–7 dm, glabrous throughout, often glaucous.

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 oblanceolate to obovate, 4–10 mm wide, margins dentate, not ciliate, surfaces glabrous or sparsely pubescent subapically, trichomes simple, 0.3–0.8 mm.

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

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

18–28, often concealing stem proximally;

blade auricles absent, surfaces of distalmost leaves glabrous.

8–30-flowered, usually unbranched.

20–50-flowered, usually 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 glabrous;

petals white, 3–5 × 0.5–0.7 mm, glabrous;

pollen ellipsoid.

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

ascending to divaricate-ascending, usually straight, 4–12 mm, glabrous.

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, usually curved, rarely straight, edges parallel, 5–10 cm × 1.5–1.8 mm;

valves glabrous;

ovules 64–80 per ovary;

style 0.2–0.6 mm.

uniseriate, 2.5–3.5 × 1.5–2.2 mm;

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

uniseriate, 1.5–1.8 × 1.2–1.4 mm;

wing continuous, 0.3–0.5 mm wide distally.

= 14.