Flora of North America species comparison

several from base, erect or outer ones decumbent, (unbranched, stout, usually sparsely leaved), 1–3 dm.

few to several from base, prostrate to erect or spreading, 0.05–0.5(–1.2) dm.

blade linear, 2–7(–10) cm, margins entire, repand, or shallowly dentate.

(petiole and blade differentiated or not);

blade spatulate to elliptic or linear or narrowly oblanceolate, 0.5–1.5(–2.5) cm, margins entire.

(sessile);

blade (erect), spatulate to linear, (1–)2–3(–4.5) cm, margins entire, sometimes involute, (apex acute or subacute).

similar to basal, smaller.

dense, (exceeding basal leaves).

dense.

sepals ovate or oblong, (4.5–)5–6(–7) mm, (lateral pair subsaccate, cucullate, median pair thickened, cucullate apically);

petals spatulate, 7–9(–11) mm (widened at base, slightly retuse).

sepals narrowly lanceolate to lanceolate, 2.8–6 mm;

petals (pale to deep yellow), narrowly lanceolate to oblanceolate, 5–9 mm, (claw undifferentiated from blade).

(spreading, sharply sigmoid), 8–15 mm.

(ascending, straight or slightly curved), 2–6 mm.

(sessile or substipitate), ovate to oblong, not compressed at distal margins or apex, 5–9 mm;

valves sparsely pubescent, trichomes appressed;

ovules 4–8 per ovary;

style 3–5 mm.

(sessile or substipitate), globose or subglobose to obovoid, not or slightly inflated, 3–6 mm, (firm, apex acute);

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

replum as wide as or wider than fruit;

ovules 4–8 per ovary;

style 1.7–6 mm.

flattened.

flattened.

= 16, ca. 20.