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, (2–)3–9.5(–11) dm.

not rosulate;

blade margins pinnatifid.

rosulate; (petiole 1–7 cm);

blade margins lyrate-pinnatifid or subruncinate.

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 to oblanceolate or oblong, 2.5–10(–15) cm × 4–25(–45) mm, base auriculate or amplexicaul, margins: proximal lyrate-pinnatifid, (lobes 2–7 on each side), laciniate, irregularly serrate, repand, or entire, distal undivided and entire or obscurely denticulate, (apex acute).

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 spreading, oblong, 1.6–2.8 × 0.6–1.2 mm;

petals yellow, obovate or spatulate, (1.5–)1.8–3(–3.5) × 0.7–1.8(–2) mm;

median filaments 1.5–2.5 mm;

anthers oblong, 0.5–0.6mm, (gynophore 0.3–0.8(–1) mm).

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

ascending, straight, (2–)4–12(–14) mm, (glabrous or hirsute).

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, straight, globose or subglobose, (2.5–)3.5–6(–6.5) × (2.3–)2.8–4(–4.3) mm;

valves [(3 or) 4(–6), leathery, not veined], glabrous; (septum fenestrate at middle);

ovules 60–85 per ovary;

style (stout), 0.5–1(–1.4) mm.

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

dark reddish brown, oblong-ovate, 0.5–0.7 mm (0.3–0.4 mm diam.), reticulate.

= 16.

= 16.