Flora of North America species comparison

decumbent to ascending, much branched, elongate, glabrous or glandular-pubescent.

petiole 1–6 cm;

blade ovate to lance-elliptic, 1–6 × 0.5–4 cm, margins entire to sinuate and ± undulate, surfaces glabrous or glandular-pubescent.

petiole 1–3.5 cm;

blade linear to narrowly oblanceolate, 1.5–8 × 0.3–0.4 cm, 5 or more times as long as wide, margins entire, plane, surfaces glabrous or puberulent.

peduncle longer than subtending petiole;

bracts lanceolate to obovate, 5–12 × 1–5 mm, papery, glabrate to glandular-pubescent;

flowers 25–60.

bracts broadly ovate to ovate-elliptic, 7–11 × 2–8 mm, thinly papery, glabrate to minutely glandular-puberulent;

flowers 12–25.

tube pale rose proximally to greenish distally, 15–25 mm, limb white, 7–12 mm diam.

tube greenish pink, 3–8 mm, limb pale pink, 3–4 mm diam.

winged, broadly obdeltate or cordate in profile, 6–10 × 4–10 mm, thin, usually coriaceous, rarely indurate, base attenuate, apex prominently beaked;

wings (2–)5 (when 2, folded to form single deep groove), without dilations, broad, thin, without cavities.

winged, ± obdeltate in profile, 6–9 × 5–8 mm, scarious, apex slightly beaked;

wings 5, thin walled, apex tapered to broadly obtuse, without dilations, cavities extending throughout.