Flora of North America species comparison

erect or decumbent, often branched distally.

decumbent, branched basally and distally, (0.5–)1–2.5 dm.

cauline and sometimes basal;

petiolate or sessile;

basal rosulate or not, sessile [petiolate], blade (somewhat fleshy), margins entire [dentate to pinnatifid];

cauline petiolate or sessile, blade margins entire, dentate, or pinnatifid.

(of sterile shoots) sessile;

blade linear-oblanceolate, 1–3(–5) cm × 2–5 mm.

(of flowering shoots) similar to basal, blade smaller, margins entire.

(corymbose), elongated or not in fruit.

slightly elongated in fruit.

sepals ascending [erect], ovate or oblong;

petals (zygomorphic, outer [abaxial] pair larger than inner [adaxial] pair), white or pink to purple, obovate [oblanceolate], claw often distinct;

stamens tetradynamous;

filaments not dilated basally;

anthers ovate or oblong, (apex obtuse);

nectar glands (4), lateral, 1 on each side of lateral stamen.

sepals oblong or ovate, 2–4 mm;

petals white or sometimes pink, abaxial pair 5–13 × 2–7 mm, adaxial pair 3–6 × 1–3 mm.

spreading, divaricate, descending, or ascending, slender.

divaricate-ascending, 4–11 mm.

sessile, (winged), suborbicular or ovate [obcordate], not torulose, keeled, strongly angustiseptate;

valves not veined, (winged), glabrous;

replum rounded;

septum complete;

ovules 2 per ovary;

stigma capitate, entire or 2-lobed.

suborbicular to broadly ovate, 6–8 × 5–6 mm, apically notched;

valves extending into subacute wing;

style 1–3 mm, exserted beyond apical notch.

flattened, often winged, ovate [orbicular to reniform];

seed coat mucilaginous or not when wetted;

cotyledons accumbent.

narrowly winged, 2–3 mm.

= 7, 8, 9, 11.

= 22.