Flora of North America species comparison

absent.

erect, (angled, sometimes flexuous), unbranched basally, usually branched distally, (1.2–)2–6.5(–9) dm.

erect, ascending, decumbent, or prostrate, unbranched or branched.

cauline, rhizomal, or basal;

rhizomal and basal rosulate or not, petiolate, blade margins entire, toothed, or 1–3-pinnatisect, or palmately lobed, sometimes trifoliolate, pinnately, palmately, or bipinnately compound (leaflets petiolulate, subsessile, or sessile);

cauline (usually alternate, rarely opposite or whorled) petiolate or sessile, blade (base cuneate, attenuate, or auriculate to sagittate), margins entire, dentate, or variously lobed, (leaflets petiolulate or sessile).

(often withered by flowering), rosulate, similar to cauline, with fewer distal leaflets.

9–24, (9–)13–25-foliolate, petiolate, leaflets petiolulate;

petiole 2–6 cm, base auriculate (auricles to 10 × 2.2 mm);

lateral leaflets similar to terminal, blade often smaller;

terminal leaflet (petiolule to 0.5 cm), blade orbicular, obovate, ovate, or lanceolate, 1–4(–5) cm × 5–17 mm, margins entire or 3–5(–9)-toothed or -lobed.

ebracteate.

(corymbose or paniculate, bracteate in C. pattersonii), elongated in fruit.

sepals oblong, 1.2–2(–2.5) × 0.7–1(–1.2) mm, lateral pair not saccate basally;

petals (rarely absent), white, oblanceolate, 1.5–4(–5) × 0.6–1.2 mm;

filaments 2–3(–4) mm;

anthers ovate, 0.3–0.5 mm.

sepals (caducous), usually erect, rarely spreading or ascending, ovate or oblong, lateral pair saccate or not basally, (usually glabrous, rarely pubescent);

petals (rarely absent), white, pink, purple, or lilac, obovate, spatulate, or oblanceolate, claw absent or strongly differentiated from blade, (apex obtuse, rounded, emarginate, or subemarginate);

stamens (6, rarely 4), equal in length;

filaments not dilated basally;

anthers ovate, oblong, or linear, (apex obtuse), glabrous [rarely pubescent];

nectar glands confluent, lateral glands annular or semiannular, subtending bases of stamens, median glands present (2, rarely 4) or absent.

divaricate or ascending, 3.5–12(–15) mm.

erect, ascending, divaricate, or reflexed, slender or stout.

linear, (torulose), (1–)1.6–3(–3.5) cm × 0.9–1.5 mm; (valves glabrous or, rarely, pilose);

ovules 10–30 per ovary;

style 0.6–1.6(–2) mm.

siliques, sessile, usually linear, rarely narrowly oblong or narrowly lanceolate, smooth or torulose, latiseptate;

valves (papery, elastically dehiscent, becoming spirally or circinately coiled) each not veined, glabrous or, rarely, pubescent;

replum strongly flattened;

septum complete, (membranous);

ovules 4–80 per ovary;

style usually distinct, rarely obsolete;

stigma capitate.

brown, oblong, 1.1–1.5 × 0.8–1 mm, (compressed, sometimes narrowly winged apically).

uniseriate, flattened, usually not winged, rarely margined or winged, oblong, ovoid, or globose;

seed coat (smooth, minutely reticulate, colliculate, or rugose) mucilaginous or not when wetted;

cotyledons accumbent, rarely incumbent.

= 7, 8.

= 16.