Flora of North America species comparison

decumbent to erect, usually forming leafy clumps, 3–10 dm, herbaceous or suffrutescent basally, usually glandular-viscid, more densely so distally.

usually several, 5–15 dm;

herbage lightly puberulent basally, glandular-puberulent [glandular-villous] distally.

spreading or ascending;

petiole 0.1–2.2(–5) cm;

blade broadly deltate or ovate, 2–5(–8) × 1.7–7(–12) cm, fleshy to slightly succulent, base rounded to cordate, apex acute (rounded), glabrate to glandular-villous.

at midstem with petiole 2–6 cm;

blade usually cordate, less often deltate, ovate, or ovate-lanceolate, 5–14 × 3–8 cm.

usually thyrselike, often narrow;

involucres 7–16 mm, lobes narrowly lance-oblong, base 30–50% of height.

dense clusters of flowers among conspicuous foliaceous bracts 5–20 mm;

peduncle 0.5–2 mm;

bracts 40–60% connate, 7–11 mm in flower, 10–18 mm in fruit, apex triangular to narrowly triangular.

1 per involucre;

perianth usually white (pale pink), 1.3–1.8 cm.

perianth white, tube blushed with green or purple, (7–)8–15(–17) cm, pubescent externally.

dull reddish brown to almost black, rarely with 10 inconspicuous, paler lines, sometimes with several very shallow grooves, broadly ovoid, 4–6 mm, surfaces smooth or very slightly rugose.

black to dark brown, bluntly 5-angled in cross section, with low black to dark brown [white] irregular tubercles between angles, ovoid to slightly obovoid, 7-12 mm, base abruptly constricted to truncate, apex tapered to truncate, puberulent between tubercles.

= 58.