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

similar to cauline, (erect, surfaces silvery).

(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).

(ascending, subsessile);

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

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

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

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

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

petals spatulate, 5–6 mm.

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

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

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

(divaricate, straight), 5–10 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.

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.

plump.

flattened.