Flora of North America species comparison

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

erect, ascending, or decumbent, unbranched or branched distally.

basal and cauline;

petiolate or sessile;

basal rosulate, petiolate or sessile, blade margins usually entire or dentate to denticulate, rarely lyrate-pinnatifid;

cauline usually sessile, rarely shortly petiolate, blade (base often auriculate, sagittate, or amplexicaul), margins entire or dentate.

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) 3–6 (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).

(sometimes paniculate, usually simple, sometimes branched).

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.

sepals erect or ascending, ovate or oblong, lateral pair saccate or not basally, (margins membranous);

petals white, pink, or purple, usually spatulate, oblong, or oblanceolate, rarely obovate, claw differentiated from blade, (shorter than sepals, apex obtuse or rounded);

stamens tetradynamous;

filaments usually not dilated basally;

anthers ovate, oblong, or linear, (apex obtuse);

nectar glands confluent, subtending bases of stamens, lateral glands semiannular or annular, median glands rarely absent, (sometimes toothlike and distinct).

ascending to erect, (3–)5–10(–15) mm.

erect, ascending, or divaricate, (not reflexed or secund), 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.

siliques, usually sessile, rarely shortly stipitate, linear, smooth or torulose, (usually straight, sometimes slightly curved), flattened, latiseptate;

valves (papery), each with obscure or prominent midvein, glabrous;

replum (visible), rounded;

septum complete, (membranous, translucent, veinless);

ovules 10–86[–110] per ovary;

style obsolete or distinct;

stigma capitate, (sometimes slightly 2-lobed).

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

wing 0.2–0.4 mm wide (wider distally).

uniseriate, flattened, winged or margined, oblong or orbicular;

seed coat (smooth or minutely reticulate), not mucilaginous when wetted;

cotyledons accumbent.

= 8.

= 16.