Flora of North America species comparison

usually branched basally, (widely) branched distally, (1–)3–7(–10) dm.

branched distally, 2–10 dm.

(rosettes persistent);

petiole (broad) 2–10 cm;

blade lyrate to pinnatisect, 2–30 cm × 10–50(–100) mm, (margins serrate-dentate), 4–10 lobes each side.

(early deciduous);

petiole (1–)2–8(–15) cm;

blade pinnatifid to pinnately lobed, (4–)6–30(–80) cm × 15–150(–280) mm, lobes 1–3 each side.

sessile;

blade (reduced in size distally, distalmost bractlike), base tapered, not auriculate or amplexicaul.

usually shortly petiolate, rarely sessile;

blade (oblong or lanceolate, reduced in size distally), base tapered or cuneate, not auriculate or amplexicaul, (margins dentate to lobed).

not paniculately branched.

not paniculately branched.

sepals 5–4.5 × 1–1.5 mm;

petals pale yellow, fading or, sometimes, white, oblanceolate, 4–7 × 1.5–2(–2.5) mm, claw 1–3 mm, apex rounded;

filaments 2.5–4 mm;

anthers 1–1.3 mm;

gynophore to 1 mm.

sepals (3.5–)4–6(–7) × 1–1.7 mm;

petals pale yellow, ovate to obovate, (7–)9–13 × 5–7.5 mm, claw 3–6 mm, apex rounded or emarginate;

filaments 4–7 mm;

anthers 1.5–2 mm.

widely spreading, 8–15 mm.

spreading to divaricately ascending, (slender), (5–)10–15(–20) mm.

(shortly stipitate); widely spreading to ascending (not appressed to rachis), torulose, cylindric, 3–7 cm × 2–4(–5) mm;

valvular segment with 6–12(–15) seeds per locule, 2.2–5 cm, terminal segment 1(–3)-seeded, (cylindric, stout), 10–20 mm.

(sessile); spreading to divaricately ascending to nearly erect (not appressed to rachis), torulose, subcylindrical or somewhat flattened, (2–)3–5(–6) cm × 2–5 mm;

valvular segment with 6–15(–20) seeds per locule, (1.5–)2–4.5 cm, terminal segment seedless (conic), (4–)5–10(–15) mm, (tapering to slender style).

light reddish brown or black, 1–1.2 mm diam.;

seed coat prominently reticulate, mucilaginous when wetted.

brown or yellow, 1.2–2 mm diam.;

seed coat finely reticulate-alveolate, not mucilaginous when wetted.

= 20.

= 36.