Flora of North America species comparison

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

simple from base, decumbent, (occasionally few-branched), 0.5–1.5(–2) dm.

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

blade elliptic to broadly obovate, triangular, rhombic, or round, 1.5–3(–4) cm, margins often sinuate or shallowly lobed.

(sessile);

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

(sessile or shortly petiolate);

blade elliptic to oblanceolate to obovate, 0.5–1.5 cm, (base narrowed to petiole), margins entire.

dense, (exceeding basal leaves).

compact to loose.

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 oblong to broadly elliptic, 4–7.5 mm, (lateral pair saccate or not);

petals spatulate, 7.5–10 mm.

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

(ascending or divaricate-spreading, straight to loosely sigmoid or curved), 4–10 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), elliptic, suborbicular, or oblong, strongly compressed (angustiseptate), 5–9 mm, (rounded to sharply keeled on 1 side, edges ± keeled);

valves: (margins covering replum edges or not), usually pubescent throughout or, rarely, glabrous inside;

ovules (4–)8–14(–16) per ovary;

style 2–4.5(–5) mm.

flattened.

slightly flattened.

= 16, ca. 20.