Flora of North America species comparison

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

ascending to semierect, slightly to moderately branched, elongate, glandular-pubescent to viscid.

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 0.5–4 cm;

blade ovate to elliptic, 2–5 × 1.5–3.5 cm, margins entire or occasionally ± repand and slightly undulate, surfaces glandular-puberulent.

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 ovate to elliptic, 7–13 × 4–6 mm, papery, glandular-pubescent;

flowers 20–75.

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

tube pink to magenta, 18–32 mm, limb magenta, 8–10 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.

broadly turbinate or cordate in profile, 8–15 × 6–12 mm, 0.7–2 times as long as wide, scarious, with a low, conic, inconspicuous beak at apex;

wings 5, often twisted, usually smooth, occasionally rugose, not reticulate veined at apex, without cavities.