Flora of North America species comparison

unbranched, (0.2–)0.4–1.4(–2.1) dm, often pubescent throughout, sometimes glabrous distally, trichomes often simple and 2–5-rayed, 0.1–0.5 mm, (sometimes with mostly subpectinate ones).

(simple to many from or near base), unbranched, (0.2–) 0.3–2.7(–3.7) dm, hirsute or pubescent throughout, trichomes 3–4-rayed, 0.05–0.4 mm, (sometimes mixed proximally with simple or spurred ones, 0.5–1.2 mm).

rosulate; petiolate;

petiole (0–1 cm), ciliate throughout;

blade narrowly oblanceolate to linear, (0.4–)0.6–1.7(–2.5) cm × (1–)1.5–3.5(–5) mm, margins entire, (ciliate, trichomes usually simple, rarely 2-rayed, 0.2–1.1 mm), surfaces usually pubescent with short-stalked, pectinate trichomes, 0.15–0.5 mm, sometimes also with 4–6-rayed ones, (midvein usually obscure abaxially), sometimes glabrous adaxially.

not rosulate;

petiole (obscure), not ciliate;

blade oblanceolate to spatulate or broadly obovate, (0.4–)1–3.5(–5) cm × (2–)6–20(–28) mm, margins dentate (in distal 1/2), surfaces pubescent, abaxially with stalked, 2–4-rayed trichomes, 0.1–0.7 mm, adaxially similar or also with fewer, simple trichomes, 0.4–0.7 mm.

usually 0 (or 1, as a bract);

sessile;

blade linear to oblong, margins entire, surfaces pubescent as basal.

0–6 (on proximal 1/3 of stem);

blade similar to basal.

3–14(–30)-flowered, usually ebracteate, rarely proximalmost flowers bracteate, elongated in fruit;

rachis not flexuous, glabrous or pubescent as stem.

10–50(–70)-flowered (throughout or on distal 1/3 of scape), ebracteate, elongated in fruit;

rachis not flexuous, densely pubescent, trichomes 2–4-rayed.

sepals broadly ovate, 2.5–3.5(–4) mm, pubescent, (trichomes simple and 2- or 3-rayed);

petals yellow (fading white), oblanceolate to obovate, 4–6 × 1.5–2.5 mm;

anthers ovate, 0.3–0.5 mm.

(late ones cleistogamous, apetalous);

sepals (green or pink), oblong, 1.5–2.5 mm, glabrous or pubescent, (trichomes simple);

petals white, spatulate, (2–)2.5–4.5(–5) × 1–2 mm, (emarginate or obtuse);

anthers ovate to oblong, (0.1–)0.25–0.4 mm.

ascending, straight, (2.5–)4–11(–27) mm, glabrous or pubescent, trichomes 2–5-rayed or pectinate.

horizontal to divaricate-ascending, straight, (1–)2–7(–10) mm, pubescent as rachis.

broadly ovate to lanceolate, plane, flattened, 5–9(–11) × 2–4 mm;

valves glabrous or puberulent, trichomes simple and 2-rayed, 0.05–0.3 mm;

ovules 8–16(–20) per ovary;

style 0.2–0.9 mm.

oblong to linear or lanceolate to broadly ovate, plane, flattened, (3–)6–12(–16) × 1.7–2.7(–3) mm;

valves usually puberulent, rarely glabrous, trichomes simple, antrorse, 0.1–0.3 mm, (rarely with 2-rayed ones, or all trichomes short-stalked, 4-rayed, cruciform);

ovules (12–)24–66(–72) per ovary;

style 0.01–0.3(–0.4) mm.

oblong, 1.1–1.5 × 0.7–1 mm.

broadly ovoid, 0.5–0.7 × 0.4–0.5 mm.

= 112.

= 30, 32.