Flora of North America species comparison

erect, unbranched or branched distally, 0.2–2.5(–3.5) dm.

blade (fleshy or not), spatulate, 2–10 cm × 5–15 mm, base cuneate, margins dentate, entire, or lobed, apex obtuse.

(distal) sessile or short-petiolate;

blade margins entire or dentate.

petiolate or sessile;

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

elongated slightly in fruit.

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

sepals oblong, 7–14 mm, lateral pair saccate basally;

petals yellow, usually suborbicular, rarely obovate, 15–30 × 6–14 mm, claw 10–15 mm, apex rounded;

median filaments 10–13 mm;

anthers linear, 3–4 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.

horizontal to divaricate, slender, narrower than fruit, 4–15 mm.

widely spreading or divaricate, linear, straight, not torulose, 3–14 cm × 2–4 mm, terete when green, becoming latiseptate when dry, not striped;

valves with obscure midvein, pubescent outside, trichomes (2 or) 3 or 4 (or 6)-rayed, glabrous inside;

ovules 32–74 per ovary;

style cylindrical, slender, 0.3–2 mm, sparsely pubescent;

stigma 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 (compressed), 1.8–2.8(–3.5) × 1–2 mm; winged distally (wing narrow all around).

biseriate or uniseriate;

cotyledons usually accumbent, rarely incumbent.

of leaves 2–5(–7)-rayed on adaxial leaf surface.

sessile, stellate or malpighiaceous.

= 36.