Flora of North America species comparison

1 or few per caudex branch, arising from center or margin of rosette, somewhat elevated on woody base or near ground surface, (0.7–)2–3.5 dm, densely pubescent proximally, trichomes short-stalked, 4–8-rayed, 0.05–0.15 mm, moderately to sparsely pubescent distally.

usually 3–5 per caudex branch, arising from margin of rosette, elevated above ground surface on woody base, 1–2.5 dm, densely pubescent proximally, trichomes short-stalked, 2–4 (or 5)-rayed, 0.2–0.4 mm, moderately to sparsely pubescent distally.

blade narrowly oblanceolate, 2–5 mm wide, margins entire, not ciliate, surfaces densely pubescent, trichomes short-stalked, 4–8-rayed, 0.05–0.15 mm.

blade oblanceolate, 3–5 mm wide, margins entire, ciliate proximally, trichomes (simple), to 0.6 mm, surfaces densely pubescent, trichomes short-stalked, 2–4 (or 5)-rayed, 0.15–0.4 mm.

4–10, often concealing stem proximally;

blade auricles absent, surfaces of distalmost leaves sparsely to moderately pubescent.

5–9, not concealing stem;

blade auricles 0.5–1 mm, surfaces of distalmost leaves sparsely to moderately pubescent.

5–12-flowered, usually unbranched.

5–11-flowered, usually unbranched.

divaricate at anthesis;

sepals pubescent;

petals purple to lavender, 6–10 × 1.5–2.5 mm, glabrous;

pollen ellipsoid.

divaricate-ascending at anthesis;

sepals pubescent;

petals pale purple, 6–8 × 1.5–2 mm, glabrous;

pollen ellipsoid.

descending, recurved, 4–14 mm, pubescent, trichomes appressed, branched.

descending, straight to slightly recurved, 4–6 mm, pubescent, trichomes appressed, branched.

pendent, usually not appressed to rachis, rarely secund, straight or curved, 2–5 cm × 1.7–2.2 mm;

valves glabrous or pubescent throughout;

ovules 26–36 per ovary;

style 0.2–0.9 mm.

(immature) pendent, not appressed to rachis, not secund, straight, edges parallel;

valves glabrous.

uniseriate, 1.5–2 × 1–1.5 mm;

wing distal or continuous, 0.1–0.2 mm wide.

not seen.