Flora of North America species comparison

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

procumbent to semierect, slightly to moderately branched, elongate, often reddish at nodes, 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 1–9 cm;

blade deltate-ovate to elliptic, 2–8 × 2–6.5 cm, margins repand to sinuate, frequently undulate, adaxial surface glandular-puberulent, abaxial surface 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 ovate to elliptic, 5–16 × 2–10 mm, papery, glandular-pubescent;

flowers 20–75.

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

tube magenta, 12–25 mm, limb bright 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.

narrowly turbinate, 6–9 × 3–4.5 mm, ± 2 times as long as wide, scarious, base attenuate, rounded or truncate at apex, with a broadly conic beak;

wings 5, finely reticulate, thin walled, narrow, cavities extending throughout.