Flora of North America species comparison

simple or few from base (caudex), erect, usually unbranched, rarely branched (few) distally, (0.7–)1–3.8(–4.5) dm, (glabrous throughout or sparsely pubescent basally to distally).

simple or few from base (caudex), erect, unbranched or branched (few) distally, 0.6–2.5(–3) dm, (usually pubescent throughout, rarely subglabrate).

petiole (0.4–)1–3(–4.5) cm, (glabrous or sparsely ciliate);

blades oblanceolate, spatulate, or obovate, (0.7–)1.2–3 cm × 5–17(–22) mm, margins entire or dentate, (often ciliate), apex obtuse, surfaces glabrous or sparsely pubescent, trichomes short-stalked, forked and simple.

petiole 0.5–3(–6) cm, (ciliate);

blade oblanceolate, spatulate, or obovate, (1.5–)2.1–3.5(–6) cm × (5–)8–20(–25) mm, margins entire or dentate, (ciliate), apex obtuse, surfaces pubescent or glabrous, trichomes simple and forked, sometimes mixed with 3- or 4-rayed stellate ones.

(2 or) 3–5 (or 6);

blade linear, oblong, obovate, or oblanceolate, 0.7–3(–4) cm × 3–8 mm, base cuneate, not auriculate, margins usually entire, rarely few-toothed, apex obtuse, surfaces usually glabrous, rarely margins ciliate.

(2 or) 3–6 (or 7);

blade oblong or ovate, 1–2(–4) cm × (2–)4–10(–15) mm, base not auriculate, margins entire or dentate, (ciliate), apex obtuse, surfaces pubescent as basal leaves.

simple, (dense or lax).

simple, (dense).

sepals (greenish), oblong, 3–4 × 1.5–2 mm, (usually glabrous, rarely with few trichomes subapically), lateral pair saccate basally;

petals white, spatulate, 7–11 × 2.5–4 mm, apex rounded;

filaments 3.5–5 mm;

anthers oblong, 0.8–1 mm.

sepals (purple), oblong, 5–7 × 1.5–2 mm, lateral pair saccate basally;

petals purple, spatulate or broadly so, (12–)14–18 × 4–7 mm, apex obtuse or rounded;

filaments 6–8 mm;

anthers narrowly oblong, 1.2–1.5 mm.

suberect, ascending, or divaricate, (2–)4–17(–22) mm, (glabrous).

ascending to erect, (3–)5–10(–15) mm.

ascending to suberect, (not appressed to rachis), slightly torulose, sometimes slightly curved, strongly flattened, (2–)2.5–4(–4.6) cm × 1.7–2.2 mm;

valves each with prominent midvein extending full length;

ovules 14–26 per ovary;

style 0.5–1.2(–1.6) mm, (slender).

erect or nearly so, slightly torulose, 2–4 cm × 2–3 mm;

valves each with prominent midvein extending full length or rarely to middle;

ovules 20–28 per ovary;

style 0.2–1(–1.5) mm.

winged distally, oblong to broadly ovate, (1.5–)1.8–2.5(–3) × 1–1.3 mm;

wing (0.2–)0.4–0.8(–1) mm wide.

narrowly winged throughout, orbicular or suborbicular, 2–2.5 mm in diam.;

wing 0.2–0.4 mm wide (wider distally).

= 16.