Flora of North America species comparison

1 per caudex branch, arising from center of rosette near ground surface, ca. 1 dm, densely pubescent proximally, trichomes stalked, (2 or) 3–6-rayed, 0.2–0.5 mm, glabrate distally.

usually 2–6 per caudex branch, arising from margin of rosette near ground surface, 0.8–4 dm, densely pubescent proximally, trichomes simple and short-stalked, 2-rayed, 0.3–0.6 mm, glabrous distally.

blade oblanceolate, 4–6 mm wide, margins entire, not ciliate, surfaces moderately pubescent, trichomes long-stalked, 3–6 (or 7)-rayed, 0.2–0.5 mm.

blade narrowly oblanceolate, 1–5 mm wide, margins entire or few-toothed, ciliate proximally, trichomes (simple), to 0.9 mm, surfaces densely pubescent, trichomes simple and short-stalked, 2- or 3-rayed, 0.3–0.5 mm.

2–5, concealing stem proximally;

blade auricles absent, surfaces of distalmost leaves pubescent.

3–6, not concealing stem;

blade auricles 0.3–0.6 mm, surfaces of distalmost leaves glabrous.

3- or 4-flowered, unbranched.

7–15-flowered, usually unbranched.

not seen.

ascending at anthesis;

sepals pubescent;

petals lavender, 3.5–6 × 1–1.5 mm, glabrous;

pollen ellipsoid.

erect-ascending, straight, 4–5 mm, glabrous or sparsely pubescent, trichomes appressed, branched.

divaricate-ascending to horizontal, straight or gently recurved, 4–10 mm, glabrous or sparsely pubescent, trichomes spreading.

erect-ascending, sometimes appressed to rachis, not secund, straight, edges parallel, 3–4 cm × ca. 5 mm;

valves glabrous;

ovules ca. 16 per ovary;

style 0.5–0.7 mm.

divaricate-ascending to horizontal, not appressed to rachis, not secund, usually curved or straight, edges parallel, 2.5–4 cm × 1.2–1.5 mm;

valves glabrous;

ovules 50–80 per ovary;

style 0.05–0.3 mm.

uniseriate, 5.5–6.5 × 4–4.5 mm;

wing continuous, 1–2 mm wide.

uniseriate, 1–1.5 × 0.7–1 mm;

wing usually distal, ca. 0.1 mm wide.