Flora of North America species comparison

procumbent to semierect, slightly to moderately branched, elongate, sometimes reddish at base and nodes, glandular-pubescent, viscid.

arising from branched caudices, ascending to erect, few branched, elongate, glabrous.

petiole 0.5–8 cm;

blade ovate to triangular or lanceolate, 3–12 × 1–8 cm, margins entire to subsinuate and slightly undulate, adaxial surface glandular-pubescent, abaxial surface more densely and longer pubescent, or sometimes villous.

petiole 1–3 cm;

blade elliptic to obovate, 1.5–3.5 × 0.3–1.5 cm, margins entire to ± repand and undulate, surfaces glabrous.

peduncle longer than subtending petiole;

bracts linear-lanceolate to oval-ovate, 7–25 × 2–12 mm, scarious, glandular-puberulent to short villous;

flowers 30–80.

peduncle longer than subtending petiole;

bracts ovate to orbiculate, 7–15 × 6–15 mm, scarious, glandular-puberulent;

flowers 15–20.

tube greenish to reddish purple, 10–25 mm, limb white, (2–)6–10 mm diam.

tube white to greenish, 10–15 mm, limb white, 5–7 mm diam.

winged or not, fusiform and appearing deeply grooved when wingless, when wings not distorted, fruit ± cordate in profile, tapered at base, with prominent beak in broad notch at apex, 5–12 × 2.5–7 mm, indurate, rugose veined or, if wings distorted, fruit ± rhombic in profile and tapered at both ends, or obdeltate and truncate at apex, with prominent beak;

wings 4–5, thick, narrow, not dilated at apex, cavities extending throughout;

peripheral fruits often distorted, S-shaped in lateral view.

narrowly fusiform, 7–10 × 3–4 mm, scarious;

wings absent.