Flora of North America species comparison

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

simple from base, erect to decumbent, (well-exserted beyond basal leaves, loosely spreading), 0.3–1.2 dm.

(petiole slender);

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

(erect to prostrate, petiole distinct from blade);

blade (inner) spatulate to oblanceolate, or (outer) oblanceolate or orbicular, 1.5–4 cm, margins entire (rarely folded).

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

blade spatulate, distinctly different from basal.

subcorymbose.

moderately dense, (6–20-flowered).

sepals oblong, 8–10 mm;

petals spatulate, 12–14 mm.

sepals (pale yellow), elliptic, 3.5–5 mm;

petals lingulate, 6–9 mm.

(divaricate, straight), 5–10 mm.

(strongly sigmoid), 10–20 mm (2 times longer than fruits).

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.

lanceolate or orbicular, slightly inflated, (2.5–)3–6 mm, (apex usually strongly narrowed);

valves pubescent, trichomes sparse and closely appressed to surface;

ovules 4–8 per ovary;

style 2.5–6 mm (usually ± equal in length to mature fruit).

flattened, (2–3 mm).

plump.

= 48–52, 52, 64, 67–70.