Flora of North America species comparison

few from base, erect with outer usually decumbent, 1–3.5(–5) dm.

simple or several from base, prostrate to erect, 0.5–2(–3.5) dm.

(erect);

blade narrowly lanceolate to linear or (outer) oblanceolate, (1–)2–6(–9) cm, margins usually entire, rarely shallowly dentate, (inner involute, outer usually flat, base usually with some simple trichomes).

blade suborbicular or obovate to elliptic, (1–)2–5(–7) cm, margins entire, sinuate, or shallowly dentate.

blade narrowly oblanceolate to linear, (1–)2–4(–8) cm, margins flat or involute.

(often secund, proximal shortly petiolate, distal sessile);

blade linear to obovate or rhombic, 1–2.5(–4) cm, margins entire or shallowly dentate.

compact, (elongated and loose in fruit, densely-flowered).

dense, compact, (usually elongated in fruit).

sepals oblong to broadly elliptic, 4–7(–8) mm, (lateral pair subsaccate, median pair cucullate);

petals oblanceolate or obovate, (5–)6.5–9.5(–11) mm, (claw undifferentiated from blade, or blade gradually narrowed to claw).

sepals elliptic, 5–8.5 mm, (lateral pair boat-shaped, saccate, median pair thickened apically, cucullate);

petals (yellow to orange, sometimes fading purplish), narrowly spatulate or obovate, (6–)7.5–12 mm, (claw undifferentiated from blade, or gradually narrowed to claw, slightly expanded basally).

(usually recurved), (5–)10–20(–25) mm.

(usually sharply sigmoid, rarely nearly divaricate-spreading and straight), 5–15(–20) mm, (stout).

subglobose or obovoid, usually inflated, sometimes slightly compressed, (3–)4–6 mm;

valves densely pubescent, trichomes spreading, usually pubescent inside, trichomes appressed, sessile;

ovules (4–)8–12(–16) per ovary;

style 3–4.5(–6.5) mm.

(erect), ellipsoid or ovoid, not or slightly obcompressed, (apex not compressed), (6–)7–12 mm;

valves densely pubescent, sometimes sparsely pubescent inside;

ovules (8–)12–20(–24) per ovary;

style 3–7 mm, (sometimes pubescent).

slightly flattened.

flattened.

= 10, 20, 30.

= 10.