Flora of North America species comparison

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

(usually few-branched from base, rarely simple), ascending or decumbent to prostrate, (0.5–)1–4(–6) dm, branched distally, (glabrous or hirsute proximally).

not rosulate;

blade margins pinnatifid.

not rosulate;

blade margins pinnatifid.

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).

petiolate or sessile;

blade oblong, oblanceolate to spatulate, or obovate, (lateral lobes linear to oblong or ovate), (2–)3–9(–13) cm × 8–20(–35) mm, (lateral lobe smaller than terminal), base auriculate, margins usually pinnatifid to pinnatisect, rarely pectinate, or (terminal lobe) entire or dentate.

elongated.

considerably elongated.

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.

sepals (rarely persistent), ascending, oblong, 0.8–2(–2.5) × 0.6–1.4 mm;

petals (spreading), yellow, oblong to oblanceolate, 0.6–1.8(–2) × 0.3–1.3 mm;

median filaments 1–1.7 mm;

anthers ovate, 0.4–0.5 mm.

divaricate-ascending to horizontal, straight or recurved, (1.2–)1.7–5(–8) mm.

divaricate-ascending to horizontal, straight, 1–4.5(–9) mm, (glabrous or sparsely pubescent).

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.

siliques, curved-ascending, oblong to linear, 4–13(–18) × 1–2 mm;

valves glabrous;

ovules (30–)42–106 per ovary;

style 0.1–0.8 mm.

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

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

= 16.

= 16.