Flora of North America species comparison

several from base, decumbent to erect, (several-branched, frequently stout), 1.5–6 dm.

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

blade elliptic, (1.5–)3–6.5 cm, margins entire, repand, or shallowly dentate.

usually absent.

(proximal shortly petiolate, distal sessile);

blade linear to elliptic or obovate, (0.5–)1–3.5(–4.5) cm, margins entire or repand.

(petiole not differentiated from blade);

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

loose.

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

sepals oblong, lanceolate, or elliptic, (3–)3.5–6(–7.5) mm, (lateral pair subsaccate, median pair thickened apically, cucullate);

petals (yellow to orange), suborbicular or obovate, (5–)6.5–8(–11) mm, (narrowing gradually to broad claw, usually widened at base).

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).

(recurved, sigmoid), 5–15 mm.

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

(sessile or shortly stipitate), orbicular or obovoid, often slightly compressed, (3.5–)4–6 mm;

valves sparsely pubescent, trichomes sessile and stellate, densely pubescent inside, trichomes simple or branched;

ovules 4–12 per ovary;

style 2–4.5 mm.

(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, 20.