Flora of North America species comparison

erect, branched distally, 1–5.5(–7) dm.

absent.

petiolate or (distal) sessile;

blade linear-oblanceolate, 2–5(–6.5) cm, margins entire or subentire.

(sometimes absent), petiolate or sessile;

blade base not auriculate, margins usually entire, sometimes dentate or lobed.

simple or absent.

not elongated in fruit.

ebracteate, usually elongated in fruit.

sepals oblong, 3–5.5 mm;

petals white or pink to purple, abaxial pair 10–16 × 5–7 mm, adaxial pair 6–10 × 2–5 mm.

usually zygomorphic, rarely actinomorphic;

sepals erect, ascending, or spreading, lateral pair not saccate basally;

petals white, pink, or purple, claw present, often distinct;

filaments not or rarely appendaged;

pollen 3-colpate.

divaricate to ascending, 4–10(–12) mm.

ovate, (7–)8–10.5 × 5–8 mm, apically notched;

valves extending into subacuminate wing;

style 2–4.5 mm, included or exserted beyond apical notch.

silicles, dehiscent, unsegmented, angustiseptate;

ovules 2 or 4 per ovary;

style usually distinct (sometimes absent in Teesdalia);

stigma entire or 2-lobed.

narrowly winged, 2–3 mm.

usually aseriate, rarely uniseriate;

cotyledons accumbent.