Flora of North America species comparison

simple or few from base, decumbent to ascending, (arising laterally from a tight hemispherical tuft of leaves), to 0.15 dm.

several from base, usually somewhat decumbent, (unbranched), (0.4–)0.5–2 dm.

similar to cauline, (erect, surfaces silvery).

(petiole slender, often narrowly winged);

blade obovate to orbicular or rhombic-orbicular, 2–9 cm, (base abruptly narrowed to petiole), margins usually entire, rarely with few scattered teeth, (apex rounded or obtuse, sometimes with apical mucro).

(ascending, subsessile);

blade linear-oblanceolate, (0.6–)0.8–1.3(–1.5) cm, margins entire, (apex acute to narrowly obtuse).

blade spatulate to oblanceolate, 1–3 cm, margins entire, (apex usually obtuse).

strongly congested, (often sessile or nearly so, lateral to leaves).

loose, (elongated in fruit).

sepals (loosely erect), narrowly oblong, 3–4 mm;

petals spatulate, 5–6 mm.

sepals linear-oblong, 4–7.5 mm;

petals spatulate, 6–11 mm.

(erect or ascending, straight to slightly curved), 3–6 mm.

(divaricate, slightly sigmoid or nearly straight), 6–12 mm.

ovate, compressed (latiseptate) on margins and apically, 4–5 mm;

valves pubescent, trichomes densely appressed;

ovules 4 per ovary;

style 1–1.5 mm.

(erect), didymous, suborbicular, inflated, (4–)6–15 × (4–)8–20 mm, (papery, basal and apical sinuses similar, basal rarely shallower, apical deep, narrow and closed or nearly so);

valves retaining seeds after dehiscence, pubescent, trichomes appressed;

replum oblong, constricted, 2–3.5 mm, narrower than fruit, apex obtuse;

ovules (2 or) 4 per ovary;

style 4–6(–9) mm.

plump.

(dark brown), flattened, (2–3 mm).

= 10, 16, 24.