Flora of North America species comparison

simple from base, prostrate, (arising lateral to rosette), 0.1–0.5 dm.

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

blade suborbicular, (1–)2.5(–3) cm, (base abruptly narrowed to petiole), margins entire, (flat), (surfaces densely silvery pubescent, trichomes in multiple layers, appressed).

(petiole slender);

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

(2–4);

blade oblanceolate, ca. 1 cm, (base cuneate), margins entire, (apex acute).

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

condensed.

subcorymbose.

sepals (erect, purplish to greenish), linear-oblong or boat-shaped, 5.5–6.5 mm, (lateral pair more saccate than median);

petals (white), spatulate, 9–12 mm, (claw undifferentiated from blade).

sepals oblong, 8–10 mm;

petals spatulate, 12–14 mm.

(divaricate-ascending, nearly straight), 6–10 mm.

(divaricate, straight), 5–10 mm.

strongly didymous, irregular in shape and size, (base slightly cordate, apex with a deep closed sinus), strongly to somewhat inflated, 6–8 × 6–8 mm (± bladderlike, papery);

valves (retaining seeds after dehiscence), pubescent;

replum elliptic to obovate, not constricted, as wide as or wider than fruit, apex obtuse;

ovules 4–8 per ovary;

style 4–5 mm, (sparsely pubescent or glabrous).

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.

plump.

flattened, (2–3 mm).

= 48–52, 52, 64, 67–70.