Flora of North America species comparison

(several-branched from base), prostrate to decumbent, branched distally, 0.7–3.5(–4) dm.

(simple from base), erect, much-branched distally, 4–11(–18) dm.

not rosulate;

blade margins pinnatifid.

not rosulate;

blade margins pinnatifid.

shortly petiolate, or (distal) sessile;

blade oblong to oblanceolate or lanceolate, (lateral lobes linear, oblong to ovate, or obovate), 2–9(–11) cm × 7–20(–30) mm, (lateral lobes smaller than terminal), base not auriculate, margins pinnatifid, or (lateral lobes) entire, dentate, or sinuate.

sessile;

blade lanceolate, (2.5–)4–12(–15) cm × 5–20(–25) mm, base auriculate to amplexicaul, margins entire or serrate.

elongated.

elongated.

sepals ascending, oblong, 0.7–1.3 × 0.4–0.7 mm;

petals yellow, oblong to oblanceolate or spatulate, 0.5–0.8 × 0.1–0.3 mm;

median filaments 0.8–1.2 mm;

anthers ovate, 0.1–0.2 mm.

sepals ascending, oblong, 2–3 × 1–1.3 mm;

petals yellow, obovate, 3–5 × 1.7–2.5 mm;

median filaments 2.3–3 mm;

anthers ovate, 0.4–0.6 mm.

ascending to divaricate, (1–)1.5–3.2(–4.2) mm, straight.

divaricate-ascending to horizontal, straight, 4–15 mm.

siliques or silicles, curved-ascending, lanceolate to narrowly ovoid or oblong-lanceolate, 3–7(–9) × (0.8–)1–1.7(–2) mm (often slightly constricted at middle);

valves papillate;

ovules 20–80 per ovary;

style (0.2–)0.5–1 mm.

silicles (rarely produced), straight, globose or subglobose, 2.5–3.2 × 1.5–2.7 mm;

ovules 18–40 per ovary;

style 1–1.5(–2) mm.

biseriate, reddish brown, cordiform, 0.5–0.7 mm, colliculate.

biseriate, reddish brown, ovoid, 0.7–0.9 mm, finely colliculate.

= 16.