Flora of North America species comparison

decumbent to prostrate, often tangled in other vegetation, 2–12 dm, herbaceous, puberulent in lines or throughout, glandular or not.

decumbent, ascending, or erect, sparsely leafy with few stems to very leafy and bushy branched, leafy primarily in proximal 1/5 to throughout, 1–1.3 dm, basally minutely puberulent in 2 lines, sparsely or densely spreading-hirsute, or rarely glabrate or glabrous; distally minutely puberulent in 2 lines, sparsely or densely spreading-hirsute, or rarely glabrate or glabrous, usually glandular-puberulent or pubescent in inflorescence.

spreading;

petiole 0.5–3.5 cm;

blade broadly deltate or ovate, 1.5–8 × 1–7.5 cm, fleshy, base cordate, apex usually acute or acuminate (rounded), surfaces glabrous or pubescent, and then often glandular.

strongly ascending to spreading at 5–80°;

petiole 0–1.5 cm;

blade green to blue-gray and glaucous, linear to linear-lanceolate, rarely lanceolate, 3–11.5 × 0.1–1(–1.8) cm, thin to fleshy, thick, and succulent, base long attenuate or narrowly acute, apex acutely tapered to rounded, surfaces glabrous, glandular-pubescent, or hirsute.

loosely and narrowly cymose;

involucres solitary or clustered at ends of branches, or solitary in axils, 5–9 mm, lobes triangular, base 50–70% of height.

axillary and terminal, when axillary, consisting of single involucres or short branches, when terminal with ± well-defined central axis and shorter side branches, or narrowly to widely forked without main axis;

peduncle 3–10 mm, usually spreading glandular-puberulent or pilose, crosswalls of hairs pale or dark;

involucres pale green, sometimes tinged with purple, narrowly to widely bell-shaped, 3–6 mm in flower, 4–10(–15) mm in fruit, spreading viscid-pubescent to hirsute, 40–70% connate, lobes ovate.

3 per involucre;

perianth purplish to pale pink (white), 0.5–0.9 cm.

3 per involucre;

perianth white to purple-pink, 0.7–1.1 cm.

olive, dark brown and black-mottled, or evenly black, sometimes faintly marked with 5 shallow grooves, broadly obovoid to nearly spheric, 2.5–3.5 mm, smooth or slightly rugose.

olive brown or dark olive brown, narrowly obovate and tapering at both ends to obovoid, 3.1–5.5 mm, pubescent with spreading crinkled hairs in tufts or ± evenly distributed, hairs 0.1–0.5 mm;

ribs sometimes slightly paler, slightly elevated above surface (usually less than 0.5 times as wide as high), low rounded to round-angled, 0.5–1 times width of sulci, 0.3–1 times as wide as high, smooth throughout or sometimes rugose on sides, occasionally interrupted and tuberculate near apex;

sulci with small or rarely large tubercles, or low and inconspicuous or occasionally high and prominently cross-rugose.

= 60.