Flora of North America species comparison

several from base, decumbent to ascending, (unbranched), 0.5–1.5 dm.

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

(petiole slender);

blade obovate, 3–5 cm (width 10–20 mm, base tapering abruptly to petiole), margins entire, (apex rarely slightly acute).

usually absent.

blade oblanceolate, 0.5–1.5 cm (width 3–5 mm), margins entire.

(petiole not differentiated from blade);

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

subcorymbose.

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

sepals oblong, 8–10 mm;

petals spatulate, 12–14 mm.

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).

(divaricate, straight), 5–10 mm.

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

didymous, mostly highly inflated (strongly flattened at least in 1/2 toward replum), 14–18 × 14–18 mm, (papery, basal sinus slightly notched, apical open, shallow);

valves (retaining seeds after dehiscence), evenly pubescent;

replum lanceolate, 7–10 mm, width 1.5–2.5 mm, as wide as or wider than fruit, apex acute to acuminate;

ovules 8–10 per ovary;

style 5–7 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, (2–3 mm).

plump or slightly flattened, (strongly mucilaginous).

= 48–52, 52, 64, 67–70.