Flora of North America species comparison

several, unbranched, sometimes with shorter secondary branches, 1–20(–30) cm.

usually gray, rarely green, (5–)6.2–12.5(–17) ×2–4.3 cm;

blade usually very broadly elliptic to suborbiculate, rarely oblanceolate or elliptic, margins usually flat, sometimes undulate, usually entire, sometimes inconspicuously denticulate, apex usually acute to obtuse, sometimes retuse.

buds with unequal free tips 5–11 mm;

floral tube (50–)70–140(–160) mm;

sepals (25–)35–50 mm;

petals (25–)31–50(–52) mm;

filaments (13–)15–25(–28) mm, anthers(10–)14–20 mm;

style (75–)100–192 mm.

broadly ellipsoid to globose, not twisted, wings 10–15(–24) mm wide, body 28–48(–74) × 6–8 mm.

= 14.