Flora of North America species comparison

numerous, with numerous short secondary branches, 3–30 cm.

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

gray, (2.8–)3.7–11 × 0.1–0.6(–1.5) cm;

blade linear to narrowly elliptic to narrowly elliptic-lanceolate or narrowly oblanceolate, margins flat, entire or inconspicuously denticulate, apex acute.

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 1–2(–5) mm;

floral tube (21–)35–65(–80) mm;

sepals (20–)25–30(–37) mm;

petals (17–)25–33(–37) mm;

filaments 13–18 mm, anthers 10–12 mm;

style (45–)55–80(–98) mm.

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.

ellipsoid to narrowly ellipsoid, often twisted, wings 2–5(–9) mm wide, body 13–30(–65) × 2–6 mm.

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

= 14.

= 14.