Flora of North America species comparison

unbranched or branched (few), 2.5–8.6 dm.

not rosulate; petiolate (petioles ciliate);

blade oblanceolate to spatulate, 2–8 cm (7–-25 mm wide), margins remotely dentate apically.

blade ovate to lanceolate, 2–10 cm × 5–28 mm (smaller distally), base amplexicaul, margins entire, (apex acute to acuminate).

ebracteate, (lax in bud).

calyx campanulate;

sepals (ascending), pale yellow to white, (broadly oblong to ovate) 5–9 mm, not keeled;

petals white, 7–11 mm, blade 2–4 × 1–1.3 mm, margins not crisped, claw 6–9 mm, wider than blade;

stamens nearly tetradynamous;

filaments: median pairs (distinct), 6.5–8.5 mm, lateral pair 4.5–5.5 mm;

anthers (all) fertile, 3.5–4.5 mm;

gynophore 0.5–1.5 mm.

divaricate-ascending, (straight), 4–7.5 mm.

ascending to spreading, smooth, straight or curved, flattened, 5–12.7 cm × 1.5–3 mm;

valves each with obscure midvein (at least distally);

replum straight;

ovules 36–56 per ovary;

style 0.8–2.5 mm;

stigma subentire.

oblong, 2–3 × 1.4–2 mm;

wing 0.1–0.2 mm wide at apex.

= 28.