Flora of North America species comparison

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

few to several from base, prostrate, (arising proximal to a terminal cluster of erect leaves, usually unbranched, slender), 0.5–1(–1.5) dm.

(petiole slender);

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

(petiole slender);

blade elliptic to rhombic, 1.5–4(–5) cm, (base gradually tapering to petiole), margins usually entire, rarely dentate.

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

blade narrowly obovate to oblanceolate, 5–15 mm, margins entire.

subcorymbose.

(relatively short), rather loose.

sepals oblong, 8–10 mm;

petals spatulate, 12–14 mm.

sepals ± elliptic, 4–6 mm;

petals ovate, 6–8 mm, (claw slightly expanded at base).

(divaricate, straight), 5–10 mm.

(usually secund, recurved), 5–8 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.

(pendent), globose, subglobose, or slightly obcompressed, slightly or not inflated, 3–6 mm, (rigid, apex usually beaked);

valves pubescent throughout;

ovules 8–12 per ovary;

style 1–2 mm, (pubescent).

flattened, (2–3 mm).

slightly flattened, (suborbicular).

= 48–52, 52, 64, 67–70.