Flora of North America species comparison

simple or few from base (rosette), erect, unbranched or branched (few) distally, 3–7 dm, (hirsute basally, glabrous distally).

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 0.5–2 cm, (ciliate or not);

blade spatulate, oblanceolate, or obovate, 1.5–6 cm × 5–15 mm, margins dentate, apex obtuse or acute, abaxial surface moderately to sparsely pubescent, trichomes subsessile stellate, adaxial surface subglabrate or sparsely stellate.

7–26;

blade oblong, lanceolate, or linear-lanceolate, 1.5–7 cm × 3–18 mm, base auriculate to subamplexicaul, margins dentate or entire, apex acute or obtuse, pubescent as basal leaves except distalmost leaves often glabrous.

often simple.

(sometimes paniculate, usually simple, sometimes branched).

sepals oblong, 2.5–4.5 × 1–1.5 mm, lateral pair subsaccate basally;

petals white, narrowly spatulate or oblanceolate, 6–9 × 1–1.5 mm, apex obtuse;

filaments 3–4.5 mm;

anthers oblong, 0.8–1 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).

erect to erect-ascending, 7–16 mm, (glabrous).

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

erect to erect-ascending, (often subappressed to rachis), smooth, 4–7 cm × 0.7–0.8 mm;

valves each with midvein extending full length or to middle;

ovules 38–44 per ovary;

style 0.7–1.8 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, oblong, 0.9–1.9 × 0.5–0.7 mm;

wing to 0.1 mm wide distally.

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

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

cotyledons accumbent.

= 8.