Flora of North America species comparison

few to several from base, erect, (unbranched, slender), 0.3–1.5(–3) dm.

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

(tufted, erect);

blade linear to very narrowly spatulate, 1–3(–4) cm, margins entire (involute).

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

similar to basal.

(proximal often petiolate, distal sessile or subsessile);

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

relatively dense.

dense, (subumbellate).

sepals (greenish yellow), elliptic, 3.5–7 mm;

petals spatulate, 5–6 mm, (not clawed).

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).

(ascending, curved or sigmoid), 2–10 mm.

(ascending), relatively short.

(erect), ovoid (or longer than broad), usually inflated, 4–5 mm, (apex acute, slightly flattened);

valves pubescent, trichomes appressed;

ovules 4–8 per ovary;

style 2–4 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, (mucilaginous).

flattened.

= 10, 20.

= 12, 24, 36.