Flora of North America species comparison

several from base, usually decumbent to ascending, (arising laterally, unbranched, coarse), 1–2 dm.

several from base, erect or outer decumbent, (often several-branched, branches slender and flexuous), to 8 dm.

blade pandurate or obovate, 3–6 cm, margins usually deeply and broadly incised, rarely subentire, (apex obtuse).

blade pinnatisect to repand, 3–9(–14) cm, margins entire.

blade oblanceolate to spatulate, similar to basal, (3–6 mm wide), margins entire, (apex often somewhat acute).

(sometimes secund, proximal usually petiolate, distal sessile);

blade elliptic, 1–6 cm, (distal with cuneate base), margins entire or deeply dentate.

congested, (elongated in fruit).

dense.

sepals oblong, 6–8 mm;

petals spatulate, to 10 mm.

sepals elliptic to oblong, 3–5.5 mm, (median pair slightly thickened apically, cucullate);

petals (sometimes drying slightly purplish), suborbicular or broadly ovate, 4.5–7(–9) mm, (narrowing gradually to short claw).

(usually curving upward, sigmoid), 6–10 mm.

(horizontal or recurved and ascending at tip, sometimes loosely sigmoid), (5–)10–20 mm.

didymous, irregular in shape, somewhat angular, inflated, 5–7 × 6–8 mm, (papery, often rigid, base obtuse or truncate, apical sinus broad, open and deep);

valves (retaining seeds after dehiscence), pubescent, trichomes spreading, loose;

replum oblong, often constricted, as wide as or wider than fruit, apex obtuse;

ovules 4 per ovary;

style 5–7 mm.

globose or broadly ellipsoid, not or slightly inflated, (4–)5–8 mm, (smooth);

valves (not retaining seeds after dehiscence), glabrous;

replum as wide as or wider than fruit;

ovules (8–)12–16(–20) per ovary;

style (1.5–)2–3(–4) mm.

flattened.

flattened.

= 8, 16.

= 12.