Flora of North America species comparison

(simple or several-branched from base) erect, branched distally, (0.9–)2–4.5(–6.3) dm.

(simple from base), erect, branched distally, (2–)3–9.5(–11) dm.

not rosulate;

blade margins dentate.

rosulate; (petiole 1–7 cm);

blade margins lyrate-pinnatifid or subruncinate.

shortly petiolate or sessile;

blade oblong or oblanceolate to obovate, 1.5–7(–13.3) cm × (5–)10–28(–50) mm, (lateral lobes much smaller than terminal), base auriculate or not, margins dentate or less frequently sinuate, or (lateral lobes) denticulate or entire.

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).

considerably elongated.

considerably elongated.

sepals ascending to spreading, ovate, 1.2–2 × 0.5–0.8 mm;

petals absent;

median filaments 1–1.6 mm;

anthers ovate, 0.2–0.3 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, 0.5–2(–4) mm, (slender or stout).

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

siliques, straight or curved, oblong to oblong-linear, (4–)6–9(–12) × (1.4–)1.8–2.8(–3.5) mm;

ovules 158–242 per ovary;

style 0.1–0.5 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, yellow-brown, cordiform, 0.4–0.5 mm, foveolate.

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

= 16.

= 16.