Flora of North America species comparison

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

simple from base, prostrate to decumbent, (unbranched, from within and below leaf clusters, slender), 0.2–0.8 dm.

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

(tufted, erect or ascending, silvery);

blade linear to oblanceolate or (outer) oblanceolate to obovate or rhombic, 1.5–3.3 cm, (base sometimes subhastate), margins entire or dentate, (often involute).

(proximal often petiolate, distal sessile or subsessile);

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

blade nearly linear, to 1.5 cm, margins entire.

dense, (subumbellate).

dense, (subcorymbose).

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 (yellow-green), lanceolate, (2.5–)3.5–4.5 mm;

petals spatulate to oblanceolate, 4–6.5 mm.

(ascending), relatively short.

(recurved), 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.

(usually pendent), obdeltate, compressed (angustiseptate), 2–4 mm, (wider than long, base tapered to acute angle, apex truncate with inflated shoulders);

valves densely pubescent; (septum obsolete or with a narrow fringe inside of replum, funicles attached close to replum apex);

ovules 4 per ovary;

style 2–4 mm, (slender).

flattened.

plump, (mucilaginous when wetted).

= 12, 24, 36.