Flora of North America species comparison

erect, unbranched or branched basally, (0.4–)1.5–4.5(–7) dm.

(often withered by fruiting), similar to cauline.

(proximal and median) petiolate and (distal) sessile, (petiole (0.3–)0.5–2(–3) cm);

blade [linear, narrowly oblanceolate, elliptic, or oblong, (1–)2–8(–11) cm × (2–)5–12(–17) mm, base attenuate], margins sinuate or coarsely dentate to denticulate or repand, (distal) entire or denticulate, (apex acute).

petiolate or sessile;

blade base not auriculate, margins entire, dentate, denticulate, dentate-sinuate, or repand.

considerably elongated in fruit.

usually ebracteate [bracteate], elongated [not elongated] in fruit.

sepals linear-oblong, 4–6 mm, lateral pair not saccate basally;

petals yellow, narrowly oblanceolate to spatulate, 6–8 × 1.5–2 mm, claw 3–6 mm, apex rounded;

median filaments 4–6 mm;

anthers narrowly oblong, 0.8–1.3 mm.

actinomorphic;

sepals erect, lateral pair saccate or not basally;

petals usually yellow or orange, rarely pink or purple [white], claw present, distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

divaricate, stout, as wide as fruit, 2–4(–6) mm.

widely spreading to divaricate-ascending, narrowly linear, straight or curved upward, somewhat torulose, (2–)3–8(–10) cm × 1.5–2 mm, 4-angled, not striped;

valves with prominent midvein, pubescent outside, trichomes 2-rayed and, fewer, 3-rayed, often glabrous, sometimes pubescent inside;

ovules (40–)50–80(–90) per ovary;

style cylindrical or subclavate, stout, 1–4 mm, sparsely pubescent;

stigma slightly 2-lobed, lobes as long as wide.

siliques [silicles], dehiscent, unsegmented, 4-angled, terete, or latiseptate, rarely angustiseptate;

ovules [10–]15–100[–numerous] per ovary;

style obsolete or distinct;

stigma entire or 2-lobed.

oblong, 1.1–1.5 × 0.6–0.7 mm;

not winged or, rarely, winged distally.

biseriate or uniseriate;

cotyledons usually accumbent, rarely incumbent.

of leaves 2-rayed, mixed with fewer 3-rayed ones.

sessile, stellate or malpighiaceous.

= 16.