Flora of North America species comparison

usually simple from base, erect to ascending, often branched proximally, (0.6–)1–2(–2.5) dm.

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 0–1 cm;

blade spatulate, oblanceolate, oblong, or obovate, (0.4–)1–4(–5) cm × (3–)6–15(–20) mm, margins dentate to denticulate, apex obtuse or acute, surfaces usually pubescent, rarely subglabrate, trichomes stellate with simple rays.

3–5(–6);

blade oblong or ovate, 1–3 cm × 5–15 mm, base subcordate or auriculate, margins usually dentate, rarely subentire, apex acute or obtuse.

simple, (lax).

(sometimes paniculate, usually simple, sometimes branched).

sepals oblong, 2.5–4(–4.7) × 1–2 mm, lateral pair conspicuously saccate basally;

petals white, spatulate to obovate, 5–8(–9) × 2–3.5 mm, apex obtuse;

filaments 3–5 mm;

anthers oblong, 0.7–1.2 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 divaricate, 4–10(–12) mm.

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

ascending to spreading, torulose, 1.7–3.5(–4) cm × 1–1.7 mm;

valves each with midvein absent or obscure, along proximal 1/2;

ovules 34–50 per ovary;

style 0.3–0.6 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, ovate, 1–1.4 × 0.9–1.1 mm;

wing 0.1–0.2 mm wide.

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

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

cotyledons accumbent.

= 8.

= 16.