Flora of North America species comparison

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

prostrate, much branched, forming loose mats, elongate, densely glandular-pubescent, 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 2–4.5 cm;

blade elliptic-oblong to rhombic-ovate, 1–2.5 × 0.6–1.5 cm, margins entire to repand and ± 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 lanceolate to elliptic, 3–5 × 1–3 mm, papery, puberulent to glandular-pubescent;

flowers 15–35.

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

tube greenish, 7–12 mm, limb greenish white, 4–6 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.

biturbinate, tapered at both ends, ± rhombic or fusiform in profile, 4–6 × 2.5–4.5 mm, indurate;

wings reduced, appearing as 5 prominent lobes near middle of fruit;

peripheral fruits not or only slightly distorted.