Flora of North America species comparison

simple, terete, 5–20 dm × 0.5–1 cm.

suberect or later decumbent and rooting, branched, terete, rough with leaf scars, to 8 dm × 1 cm.

mostly in 3s, opposite or whorled, evenly spaced, simple;

petiole and blade indistinguishable, reddish green to gray-green with reddish brown spots, narrowly oblong, subcylindric, grooved adaxially, 3–15 cm × 3–6 mm, margins entire except for 3–9 conic teeth at apex, apex blunt, surfaces not glaucous;

bulbils borne between teeth, spurs spoon-shaped.

opposite, evenly spaced, simple;

petiole terete, (often turned obliquely), 1–6 mm;

blade lavender-gray, obovate, 2–10 × 1.5–8 cm, margins crenate throughout or apically, apex obtuse, surfaces glaucous;

bulbils borne mostly in notches of leaf margins on damaged or fallen leaves.

5–30 mm.

5–15 mm.

calyx pale green, not inflated, 8–16 mm, tube 3–6 mm, lobes triangular, 5–10 mm, longer than tube, apex acuminate;

corolla orange to scarlet, 25–40 mm, not contracted basally, lobes obovate, 6–12 mm, apex rounded or apiculate.

calyx violet-flecked, inflated, 10–18 mm, tube 6–11 mm, lobes deltate, 4–7 mm, shorter than tube, apex acute;

corolla orange-red, 18–25 mm, contracted basally, lobes obovate, 5–8 mm, apex obtuse to rounded.

mostly dense, corymbiform, 0.5–2 dm diam.;

branches to 3 cm.

open, corymbiform, to 1.5 dm diam.;

branches to 5 cm.

= 68.

= 34.