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 leaf tuft, above ground surface on woody base, 2–5.5 dm, densely pubescent proximally, trichomes short-stalked, 4–7-rayed, 0.1–0.4 mm, similarly pubescent distally.

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 linear to linear-oblanceolate, 2–3(–4) mm wide, margins entire, sometimes ciliate near petiole base, trichomes (simple or 2-rayed), to 0.8 mm, surfaces densely pubescent, trichomes short-stalked, 4–8-rayed, 0.1–0.3 mm.

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

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

7–18, concealing stem proximally;

blade auricles absent, surfaces of distalmost leaves densely pubescent.

8–30-flowered, usually unbranched.

6–26-flowered, usually unbranched.

divaricate-ascending to pendent at anthesis;

sepals pubescent;

petals usually purple, rarely lavender, 9–14 × 1.5–3 mm, glabrous;

pollen ellipsoid.

divaricate at anthesis;

sepals pubescent;

petals white to pale lavender, 8–18 × 2.5–4.4(–5.5) mm, glabrous;

pollen ellipsoid.

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

horizontal to descending, usually recurved, 5–10(–20) mm, pubescent, trichomes appressed, branched.

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.

divaricate-descending to reflexed, usually not appressed to rachis, rarely somewhat secund, straight, edges parallel, 4.3–7 cm × 1.6–3 mm;

valves pubescent throughout;

ovules 72–98 per ovary;

style ca. 0.1 mm.

uniseriate, 2.5–3.5 × 1.5–2.2 mm;

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

biseriate, 1.2–1.6 × 1–1.2 mm;

wing continuous, 0.1–0.2 mm wide.

= 14.

= 14.