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, branched distally, 1–4 dm.

not rosulate;

blade margins pinnatifid.

rosulate;

[petiole (1.5–)3–7.7(–12) cm];

blade [(2.5–)4–14(–22) cm × (10–)20–40(–70) mm], margins dentate to crenate.

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 subsessile;

blade ovate to lanceolate, 2.5–7 cm × 4–13 mm (smaller distally), base cuneate, not auriculate, margins dentate.

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 (deciduous after anthesis), erect, oblong, 4–5 × 1–1.5 mm;

petals whitish, oblanceolate, 6–8 × 2.5–3 mm;

median filaments 3–4.2 mm;

anthers oblong, 0.8–1.2 mm.

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

divaricate to horizontal, straight, 12–20(–26) 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.

siliques, straight or slightly curved, linear, 14–26 × 2–2.8 mm;

ovules 28–40 per ovary;

style 0.3–1 mm.

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

uniseriate, brown, ovoid, 1.6–2 mm (1.2–1.5 mm diam.), colliculate.

= 16.

= 32.