Flora of North America species comparison

erect, unbranched or branched distally, 5–15 dm, (tomentose throughout or glabrate distally).

petiole 0.3–1.2 cm;

blade lanceolate to oblanceolate, 6.7–19(–23) cm × 20–50(–60) mm, margins runcinate, (surfaces densely tomentose).

petiolate; (proximalmost similar to basal), blade lanceolate, 2–4 cm × 5–10 mm (smaller distally), margins entire to hastate.

dense, (considerably elongated in fruit).

sepals linear, 10–16 mm, pubescent;

petals pale lemon yellow, linear, 12–21 × 1–1.8 mm, claw 8–15 mm, (nearly linear), slightly wider at base, glabrous;

filaments 12–22 mm, glabrous;

anthers 4–5.5 mm;

gynophore 10–20 mm, glabrous.

horizontal to divaricate-ascending, 11–22 mm, (pilose or glabrous).

suberect to ascending, straight, flattened, 4–7 cm × 1.2–2.2 mm;

ovules 30–46 per ovary;

style 0.02–0.3 mm.

oblong, 1.8–2.6 × 1–1.5 mm.