Flora of North America species comparison

usually 1 per caudex branch, arising from center of rosette near ground surface, (0.8–)2–5 dm, densely pubescent proximally, trichomes short-stalked, 7–12-rayed, 0.1–0.2 mm, densely to sparsely pubescent distally.

usually 1 per caudex branch, arising from center of rosette near ground surface, 0.7–2.2 dm, glabrous throughout.

blade oblanceolate, 3–10 mm wide, margins entire, not ciliate, surfaces densely pubescent, trichomes short-stalked, 7–12-rayed, 0.1–0.2 mm.

blade oblanceolate, 1–2 mm wide, margins entire, ciliate near petiole base, trichomes (simple), to 0.4 mm, surfaces sparsely to densely pubescent, trichomes short-stalked, 4–8-rayed, 0.03–0.1 mm.

14–60, concealing stem for most of length;

blade auricles 0.5–4 mm, surfaces of distalmost leaves densely pubescent.

6–11, sometimes concealing stem proximally;

blade auricles to 0.5 mm, surfaces of distalmost leaves glabrous.

20–70-flowered, usually unbranched.

5–17-flowered, unbranched.

ascending at anthesis;

sepals pubescent;

petals lavender, 6–9 × 0.8–1.2 mm, glabrous;

pollen ellipsoid.

erect at anthesis;

sepals glabrous;

petals white, 3–4 × 0.5–0.8 mm, glabrous;

pollen ellipsoid.

divaricate-ascending, straight, 7–28 mm, pubescent, trichomes appressed, branched.

erect, straight, 2–4(–7) mm, glabrous.

divaricate-ascending, not appressed to rachis, not secund, usually curved, rarely straight, edges parallel, 4.5–11 cm × 1.5–2 mm;

valves glabrous or sparsely pubescent throughout;

ovules 140–190 per ovary;

style 0.05–0.6 mm.

erect, usually appressed to rachis, not secund, straight, edges parallel, 2–3.5 cm × 2.2–2.5 mm;

valves glabrous;

ovules 60–96 per ovary;

style 0.05–0.2 mm.

sub-biseriate, 1–1.3 × 0.7–0.8 mm;

wing distal or, rarely, absent, 0.05–0.1 mm wide.

sub-biseriate, 0.7–0.9 × 0.5–0.6 mm, not winged or minutely winged distally.