Flora of North America species comparison

several from base, erect or decumbent (arising laterally, unbranched), 0.5–1.5 mm.

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

(petiole slender);

blade obovate to orbicular, 3–6 cm (width 10–20 mm), margins entire or dentate.

similar to cauline, (erect, surfaces silvery).

blade spatulate, 1–2 cm (width 3–6 mm), margins entire, (apex often acute).

(ascending, subsessile);

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

congested.

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

sepals narrowly lanceolate, 5–8(–9) mm;

petals narrowly oblanceolate, 9–12 mm, (claw undifferentiated from blade).

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

petals spatulate, 5–6 mm.

(divaricate, slightly sigmoid), 8–15 mm.

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

(often purplish in age), didymous, subreniform, strongly inflated, 9–18 × 11–21(–30) mm, (papery, base obtuse to slightly cordate, apical sinus V-shaped or convex, open crests rounded);

valves (2-keeled on side away from replum, each 3-sided, keels rounded, sides flat or slightly convex, retaining seeds after dehiscence), evenly and densely pubescent;

replum oblong, as wide as or wider than fruits, apex obtuse;

ovules 4–12 per ovary;

style (4–)6–8 mm (exceeding sinus).

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

valves pubescent, trichomes densely appressed;

ovules 4 per ovary;

style 1–1.5 mm.

flattened.

plump.

= 8, 10, 16, 24.