Flora of North America species comparison

prostrate, often buried in sand, usually much branched, forming large mats, succulent, densely glandular-pubescent to glabrous.

1–6 cm;

blade deltate-ovate to reniform, 2.2–4.8 × 2.7–5.2 cm, margins usually entire, sometimes slightly repand and undulate, surfaces glabrous or viscid-puberulent.

petiole 1–3.5 cm;

blade linear to narrowly oblanceolate, 1.5–8 × 0.3–0.4 cm, 5 or more times as long as wide, margins entire, plane, surfaces glabrous or puberulent.

peduncle longer than subtending petiole;

bracts ovate, 5–9 × 3–5 mm, thin, yellowish green, glandular-pubescent;

flowers 17–35.

bracts broadly ovate to ovate-elliptic, 7–11 × 2–8 mm, thinly papery, glabrate to minutely glandular-puberulent;

flowers 12–25.

tube yellowish green, 6.5–18 mm, limb yellow, 8–13 mm diam., lobes slightly to moderately reflexed.

tube greenish pink, 3–8 mm, limb pale pink, 3–4 mm diam.

winged, ± rhombic in profile, attenuate at both ends, 8–15 × 6–14 mm, scarious;

wings 4–5, thin walled, small, cavities extending into wing.

winged, ± obdeltate in profile, 6–9 × 5–8 mm, scarious, apex slightly beaked;

wings 5, thin walled, apex tapered to broadly obtuse, without dilations, cavities extending throughout.