Flora of North America species comparison

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

several from base, decumbent to ascending, (arising laterally beneath a dense rosette), less than 0.1 dm.

(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).

(petiole slender);

blade (horizontal on the ground), obovate, 0.5–1.5 cm (width 4–8 mm, base tapering abruptly to petiole), margins entire, (apex usually acute, surfaces silvery from a dense incrustation of appressed, stellate trichomes).

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

blade oblanceolate, 0.5–1 cm (width 2–3 mm), margins entire, (surfaces densely stellate pubescent).

loose, (elongated in fruit).

congested, (subumbellate, often almost sessile, barely exceeding basal leaves).

sepals linear-oblong, 4–7.5 mm;

petals spatulate, 6–11 mm.

sepals (yellowish green), narrowly lanceolate, 4–5 mm;

petals (erect), oblanceolate, 6–7 mm, (claw weakly differentiated from blade).

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

(divaricate, straight), 5–10 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.

didymous, ovate, inflated, 4.8–6 × 6–10 mm, (papery, basal and apical sinuses deep);

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

replum obovate, 3–4 mm, as wide as or wider than fruit;

ovules 8 per ovary (2–4 abortive);

style 4–6 mm.

(dark brown), flattened, (2–3 mm).

flattened.

= 10, 16, 24.