Flora of North America species comparison

few to several from base, erect, (usually unbranched), (1.5–)2.5–4(–6) dm.

simple from base, spreading or erect, (unbranched), ca. 1 dm.

blade elliptic to obovate, 2–6.5 cm, margins entire, sinuate, or remotely toothed, (surfaces occasionally sparsely pubescent).

(petiole long, slender);

blade elliptic to obovate, 3–4 cm, (base narrowing to petiole), margins entire.

(proximal often petiolate, distal sessile or subsessile);

blade oblanceolate to linear, 1–4 cm, margins entire.

(shortly petiolate);

blade elliptic to obovate, 1–2 cm, margins entire.

dense, (subumbellate).

dense.

sepals ovate or elliptic, 5.5–10 mm, (median pair thickened apically, cucullate);

petals (bright yellow), obovate to elliptic, 8–14 mm, (sometimes with distinct claw, often retuse).

sepals narrowly elliptic or oblong, ca. 4.5 mm, (median pair thickened apically, cucullate);

petals narrowly spatulate, 7–8 mm.

(ascending), relatively short.

(sigmoid), 5–8 mm.

(shortly stipitate), ± globose or ellipsoid, not or slightly inflated, 5–8 mm;

valves (not retaining seeds after dehiscence), glabrous throughout;

replum as wide as or wider than fruit;

ovules (8–)12–20 per ovary;

style 3.5–5 mm.

(erect, substipitate), globose, ellipsoid, or obovoid, not or slightly compressed, 3–4 mm;

valves sparsely pubescent, sometimes few trichomes inside;

ovules 10–12 per ovary;

style 3–5 mm.

flattened.

flattened.

= 12, 24, 36.