Flora of North America species comparison

usually branched distally, rarely basally, (2.5–)4–10(–15) dm.

petiole (1–)2–10(–15) cm;

blade lanceolate, 10–45 cm, margins coarsely dentate or pinnatifid, lateral lobes oblong or lanceolate, (terminal lobe deltate or lanceolate, larger than lateral lobes).

(distalmost) blade lanceolate or sublinear.

sessile or subsessile [petiolate];

blade base not auriculate, margins dentate or entire.

stalked, forked, or simple.

ebracteate, often elongated in fruit.

sepals spreading, 2.5–4 × 1–1.5 mm;

petals (4–)4.5–7(–8) × (2–)3–5 mm, claw (slender), 1–2 mm;

filaments 1.5–3.5 mm;

anthers 0.8–1 mm.

actinomorphic;

sepals spreading or ascending [erect], lateral pair not saccate basally;

petals yellow, claw usually present [absent], often distinct;

filaments unappendaged [winged];

pollen 3-colpate.

divaricate, straight, 1–2(–2.3) cm.

ovoid, or, rarely, suboblong and slightly constricted at middle, terete, not winged, 1- or 2-loculed, (0.5–)0.6–0.7(–0.8) cm × 3–4(–5) mm, (gradually tapering to apex);

style obsolete or, rarely, to 1 mm.

silicles [siliques], indehiscent [dehiscent], unsegmented, terete or 4-angled [latiseptate];

ovules 2–4[–numerous] per ovary;

style obsolete or distinct;

stigma entire [2-lobed].

1 or 2 per fruit, 2–3.5 mm.

aseriate [biseriate];

cotyledons spirolobal.

= 14.