Flora of North America species comparison

(simple from base), erect, branched distally, 1–4 dm.

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

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.

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.

petiolate or subsessile;

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

petiolate or subsessile;

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

elongated.

elongated.

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.

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

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

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

ovules 28–40 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.

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

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

= 32.

= 16.