Flora of North America species comparison

several from base, erect or outer decumbent, (unbranched), to 2 dm.

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

blade elliptic to lanceolate or obovate, 3–8 cm, margins entire.

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

(proximal shortly petiolate or sessile, distal sessile);

blade elliptic or obovate, to 2 cm, margins entire.

(proximal often petiolate, distal sessile or subsessile);

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

dense.

dense, (subumbellate).

sepals narrowly elliptic or oblong, 4.5–5.3 mm, (tapering to the somewhat thickened, cucullate apex, lateral pair subsaccate);

petals (bright yellow), lingulate or broadly obovate, 7.5–8.5 mm, (narrowing to broad claw, joining in an arch, margins lacerate).

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).

(divaricate-ascending to horizontal, straight to loosely curved), to 15 mm.

(ascending), relatively short.

(sessile or substipitate), suborbicular to broadly ovate or ellipsoid, slightly compressed, 6–8 mm;

valves pubescent;

ovules 12–22 per ovary;

style 2–3 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.

flattened.

flattened.

= 10.

= 12, 24, 36.