Flora of North America species comparison

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

decumbent to ascending, little to moderately branched, elongate, glandular-pubescent.

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

flowers 12–24.

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

tube rose red, at least basally, 10–20 mm, limb white to pink, 6–8 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.

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.