Flora of North America species comparison

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

(few to several from base), usually ascending, decumbent, or prostrate, rarely erect, branched distally, 1–4.2(–5) dm, (hirsute proximally).

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.

shortly petiolate or sessile;

blade oblong or oblanceolate to obovate, (terminal lobe oblong), (2–)3.5–10(–12) cm × (5–)10–30(–37) mm, (lateral lobe smaller than terminal), base usually auriculate, rarely amplexicaul, margins: proximal pinnatifid or sinuate, distal dentate or entire, (surfaces sparsely pubescent).

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 erect, oblong, 0.8–1.8 × 0.5–1 mm;

petals (erect), yellow, oblanceolate to spatulate, 0.5–1.8 × 0.2–1 mm;

median filaments 0.9–1.3mm;

anthers ovate, 0.3–0.5 mm.

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

divaricate-ascending to horizontal, straight or recurved, (1.2–)1.7–5(–8) 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 or siliques, curved, ovoid to pyriform, 2–8(–8.8) × (0.5–)1–2.5 mm;

valves glabrous;

ovules (20–)30–80 per ovary;

style 0.3–1 mm.

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

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

= 16.