Flora of North America species comparison

erect [ascending], often branched distally.

simple or few from base, 1.5–9 dm, pubescent proximally, trichomes simple and long-stalked, 2–3-rayed.

basal and cauline;

petiolate or sessile;

basal (withered with age), rosulate, petiolate, blade margins entire, dentate to sinuate, or runcinate;

cauline subsessile or sessile [shortly petiolate], blade margins entire [dentate to sinuate].

usually persistent;

petiole 0.5–3 cm;

blade oblanceolate, 3–9 cm × 3–23 mm, margins dentate, surfaces pubescent, trichomes stalked, 2–4-rayed.

(distal) sessile;

blade linear, 2.7–7.5 cm × 1–9 mm, surfaces glabrous or sparsely pubescent.

(several-flowered, sometimes secund, lax), considerably elongated in fruit.

secund, 2–6 dm in fruit.

(usually actinomorphic, rarely zygomorphic, cup-shaped);

sepals erect, oblong to ovate, lateral pair slightly to strongly saccate basally, (usually pubescent, rarely glabrous);

petals white (lavender or purple apically), spatulate to oblanceolate, (± longer than sepals), claw undifferentiated from blade, (apex obtuse);

stamens slightly tetradynamous;

filaments dilated basally;

anthers ovate to oblong, (apex obtuse);

nectar glands confluent, subtending bases of stamens.

sepals purple or green, oblong, 2.3–4 × 0.8–2.1 mm, (subequal);

petals lavender apically, spatulate, (2.7–)3.3–4.5 × (0.5–)1–1.5(–1.7) mm, (equal);

filaments (1.7–)2–2.8(–3.3) mm;

anthers 0.9–1(–1.3) mm.

erect, descending, ascending, or divaricate-ascending, slender, (glabrous).

ascending, arcuate, 7–11 mm.

siliques, sessile or shortly stipitate, linear, not torulose, straight or curved, terete or latiseptate;

valves each with prominent or obscure midvein, glabrous or pubescent;

replum rounded;

septum complete;

ovules 40–250 per ovary;

style distinct or obsolete;

stigma capitate.

divaricate-ascending, straight or curved, 3.3–6.5 cm × 2–2.5 mm, latiseptate;

valves glabrous;

septum opaque;

ovules 40–50 per ovary;

style obsolete to 0.2 mm.

uniseriate or biseriate, plump or flattened, winged or not, oblong to ovate;

seed coat (reticulate-areolate), mucilaginous or not when wetted;

cotyledons accumbent or incumbent.

uniseriate, flattened, winged, oblong, 2.4–2.8 × 1.2–1.9 mm;

seed coat not mucilaginous when wetted;

cotyledons accumbent.

= 8.