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 1–4 per caudex branch, usually arising from center of rosette near ground surface, rarely arising laterally proximal to sterile shoots, 1.5–8(–10.2) dm, glabrous or sparsely pubescent proximally, trichomes sessile, usually 2-rayed, rarely simple, 0.3–0.7 mm, glabrous distally.

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, 1.5–8(–14) mm wide, margins usually entire, rarely dentate, ciliate, trichomes (sessile, usually 2-rayed, rarely simple ones at petiole base), surfaces usually pubescent, sometimes glabrous, trichomes sessile, 2-rayed (malpighiaceous), 0.3–0.7 mm.

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

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

6–52, concealing stem proximally;

blade auricles 0.5–3 mm, surfaces of distalmost leaves glabrous.

8–30-flowered, usually unbranched.

8–35(–80)-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.

erect at anthesis;

sepals glabrous;

petals white (usually aging pale lavender), (5–)7–11 × 1.5–2.7 mm, glabrous;

pollen ellipsoid.

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

erect, straight, 5–18(–25) 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.

erect, appressed to rachis, not secund, straight, edges parallel, 4–9(–10.2) cm × 1.5–3.5 mm;

valves glabrous;

ovules 110–216 per ovary;

style 0.05–0.3 mm.

uniseriate, 2.5–3.5 × 1.5–2.2 mm;

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

biseriate, 1.3–2.2 × 1–1.6 mm;

wing lateral and distal, 0.3–0.8 mm wide.

= 14.

= 14.