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, 1–4.5 dm, glabrous throughout.

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, 1.5–6 mm wide, margins entire, ciliate at petiole base, trichomes to 0.8 mm, surfaces sparsely pubescent, trichomes sessile, malpighiaceous (usually at margin) and 3- or 4-rayed, 0.15–0.4 mm.

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

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

5–17, often concealing stem proximally;

blade auricles 1–3 mm, surfaces of distalmost leaves glabrous.

8–30-flowered, usually unbranched.

10–25-flowered, 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 purple, 6–9 × 1.5–2.5 mm, glabrous;

pollen spheroid.

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

erect, straight, 5–10 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, 3.5–6.5 cm × 1.8–2.5 mm;

valves glabrous;

ovules 64–134 per ovary;

style 0–0.2 mm.

uniseriate, 2.5–3.5 × 1.5–2.2 mm;

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

biseriate to sub-biseriate, 1.8–2.2 × 1–1.8 mm;

wing continuous, 0.2–0.5 mm wide.

= 14.