Flora of North America species comparison

few to several from base, erect or outer decumbent, 0.5–2.5 dm.

several (to several hundred) from base, erect, (each terminating in a tufted cluster of leaves), to 7 dm.

blade suborbicular to elliptic or ovate or deltate, 0.5–2(–6.5) cm, margins entire or shallowly dentate.

(petiole not differentiated from blade);

blade narrowly elliptic to narrowly linear-oblanceolate, (0.8–)1–1.5 cm, (base cuneate), margins entire.

(proximal shortly petiolate, distal usually sessile);

blade narrowly elliptic or obovate, (0.5–)1–2.5(–4) cm, margins entire.

similar to basal, blade sometimes linear, (apex acute).

compact, (± subumbellate to densely corymbiform, elongated or not).

dense, (often ± subumbellate, somewhat elongated in fruit).

sepals ± elliptic, 4.5–7(–8.5) mm, (median pair thickened apically);

petals (sometimes white), suborbicular to obovate or obdeltate, 6.5–15 mm, (base narrowing to broad claw, apex sometimes emarginated).

sepals narrowly elliptic, 2.5–3.5(–4) mm, (not keeled);

petals narrowly spatulate, 4–7 mm.

(usually spreading at right angles, sometimes nearly erect, ± straight), 5–15(–20) mm, (stout).

(strongly sigmoid), 5–10 mm.

(sessile or shortly stipitate, less than 1 mm), subglobose to broadly ellipsoid, inflated or slightly compressed (terete or subterete), (4–)5–8(–9) mm;

valves (not retaining seeds after dehiscence), glabrous;

replum as wide as or wider than fruit;

ovules 8–16 per ovary;

style 4–8(–9) mm.

ellipsoid, compressed, 4–6 mm;

valves densely pubescent, trichomes appressed;

ovules 2 per ovary;

style 2–3.5 mm.

flattened.

flattened, (oval).