Flora of North America species comparison

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

decumbent to ascending, little to moderately branched, elongate, 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 0.8–4 cm;

blade ovate to oblong-ovate, 2–5 × 1.5–3.5 cm, margins entire to ± sinuate and undulate, surfaces glandular-pubescent.

peduncle longer than subtending petiole;

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

flowers 25–60.

peduncle longer than subtending petiole;

bracts lanceolate to broadly ovate, 4–9 × 1.8–6 mm, papery, puberulent to glandular-pubescent, often villous basally;

flowers 12–24.

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

tube rose red, at least basally, 10–20 mm, limb white to pink, 6–8 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, broadly cordate or ± round in profile, 4–6 × 4–6 mm, coriaceous, apex deeply notched with small beak;

wings 2(–3), infrequently partially folded together, without dilations, interior spongy.