Flora of North America species comparison

usually 1 per caudex branch, arising from center of rosette near ground surface, (1–)2–6.3 dm, densely pubescent proximally, trichomes short-stalked, 3–8-rayed, 0.1–0.3(–0.5) mm, similarly pubescent distally.

usually 2–5 per caudex branch, arising from margin of rosette near ground surface, 0.8–2(–3) dm, glabrous throughout.

blade oblanceolate to linear-oblanceolate, 1.5–5 mm wide, margins usually dentate, not ciliate, surfaces densely pubescent, trichomes short-stalked, 5–12-rayed, 0.05–0.2 mm.

blade oblanceolate, (2–)3–7 mm wide, margins usually entire, rarely denticulate, ciliate, trichomes (simple and short-stalked) 2- or 3-rayed, 0.2–0.4 mm, surfaces glabrous.

7–45(–65), concealing stem proximally;

blade auricles absent or 0.7–3 mm, surfaces of distalmost leaves pubescent.

3–5, not concealing stem;

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

10–40(–64)-flowered, usually unbranched.

10–16-flowered, usually unbranched.

ascending to descending at anthesis;

sepals pubescent;

petals white to lavender, 5–9 × 0.8–1.8 mm, glabrous;

pollen ellipsoid.

ascending at anthesis;

sepals glabrous;

petals white to lavender, 4–5 × 1.2–1.7 mm, glabrous;

pollen ellipsoid.

pendent, recurved distal to horizontal to ascending base, 4–10 mm, pubescent, trichomes appressed, branched.

ascending, straight, 3–7 mm, glabrous.

closely pendent, rarely appressed to rachis, sometimes somewhat secund, usually straight, edges parallel, 3–6.5 cm × 1.9–2.2 mm;

valves pubescent throughout;

ovules 38–64 per ovary;

style 0.05–0.1 mm.

ascending, not appressed to rachis, not secund, straight, edges parallel, 1.5–3.7 cm × 1.4–1.7 mm;

valves glabrous;

ovules 14–22 per ovary;

style 0.2–0.6 mm.

uniseriate, 1.4–1.8 × 1–1.4 mm;

wing continuous, 0.1–0.3 mm wide.

uniseriate, 1.7–2.2 × 1–1.2 mm;

wing absent or distal, 0–0.5 mm wide.

= 14.