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).

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

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).

sessile;

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

elongated.

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 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.

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

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

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

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

= 16.

= 16.