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 decumbent to prostrate, rarely erect, much-branched basally and distally, (0.3–)0.4–1.9(–2.6) dm (rarely pilose basally).

not rosulate;

blade margins pinnatifid.

not rosulate;

[petiole (0.3–)0.9–2(–2.5) cm];

blade [(0.6–)1–3.2(–4) cm × (2–)3–8(–15) mm], margins usually dentate to pinnatifid, rarely repand.

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 obovate to oblanceolate, smaller distally, base cuneate, attenuate, not auriculate, margins entire, crenate, or repand.

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, 1–1.7(–2) × 0.6–0.8 mm;

petals yellow, spatulate, (1.3–)1.5–2 × 0.5–0.8 mm;

median filaments 0.8–1.2 mm;

anthers ovate, 0.3–0.4 mm.

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

ascending to horizontal or slightly reflexed, straight or curved, (2–)3–6(–8) 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.

often siliques, sometimes silicles, straight or slightly curved, oblong to lanceolate or ovoid, 3–7(–8) × 1.4–2.1(–2.7) mm;

valves glabrous;

ovules 26–42 per ovary;

style (0.3–)0.5–1(–1.2) mm.

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

biseriate, yellow-brown, ovoid to subglobose, 0.5–0.7 mm (0.4–0.5 mm diam.), reticulate.

= 16.

= 16.