Flora of North America species comparison

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

several from base (crowded), erect, not exceeding leaves.

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

usually absent.

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

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

(petiole not differentiated from blade);

blade linear-oblanceolate, 3–8(–13) mm, margins entire.

dense, compact, (usually elongated in fruit).

(secund), dense, corymbose, (few-flowered, not or barely exceeding leaves).

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).

sepals (yellow-green), linear to narrowly triangular, 3.7–4.8 mm, (lateral pair subsaccate);

petals (deep yellow, slightly orange in center), spatulate, 5.2–6.5 mm, (claw joined at right angle).

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

(ascending to divaricate-ascending, straight), 3.5–6 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).

(becoming reddish or copper-colored in age), ovate, often slightly compressed (at margins apically), 3–5 mm, (apex acute);

valves (not retaining seeds after dehiscence), glabrous; (septum perforate or not);

ovules 4–8 per ovary;

style 1.8–3 mm.

flattened.

plump or slightly flattened, (strongly mucilaginous).

= 10.