Flora of North America species comparison

mostly simple, terete, 5–25 dm × 0.5–2 cm.

mostly erect [scandent], branching or often simple proximal to cyme, often bare by anthesis, succulent.

opposite, evenly spaced, simple, largest subpeltate;

petiole subterete, 1–5 cm;

blade purple-blotched abaxially, triangular to lanceolate, 5–25 × 3–12 cm, margins serrate, apex acute, surfaces glaucous;

bulbils borne in notches of leaf margins, spurs spoon-shaped.

persistent, cauline, sometimes subrosulate, mostly opposite, sometimes in whorls of 3, sessile or petiolate, subclasping basally, (narrowed apically);

blade obovate or triangular to lanceolate or elliptic-oblong, laminar (B. delagoense subcylindric), 2–50 cm, fleshy, base not spurred, margins entire, lobed, or 1–2 times imparipinnate;

veins not conspicuous.

terminal cymes, often paniculate (branches 1–5 times bifurcate with flower in fork).

5–15 mm.

present.

calyx green or purplish, not inflated, 6–10 mm, tube 3–4 mm, lobes triangular, 3–7 mm, equaling or longer than tube, apex acute;

corolla pink or lavender, 20–30 mm, not contracted basally, lobes obovate, 6–12 mm, apex rounded, apiculate.

pendulous, 4-merous;

sepals connate basally or into tube (calyx often inflated and accrescent in fruit), all alike;

petals erect, connate into tube, orange, yellow-green marked with lavender, pale yellow flecked with red, orange-red, scarlet, pink, lavender, yellow-green flecked with violet-red, or greenish white with maroon distally, (corolla throat 2–4 times subglobose tube, often constricted against pistils at base, lobes shorter than throat);

calyx and corolla not circumscissile in fruit;

nectaries semicircular to linear;

stamens [mostly] 8;

filaments adnate on corolla tube;

pistils erect, (often connate basally);

ovary base somewhat narrowed, tapering to styles;

styles 2–4 times longer than ovary.

[mostly] erect.

ellipsoid, ribbed, finely cross-ribbed.

lax, paniculate, 1.5–3 dm diam.;

branches to 15 cm.

= 17.

= 38.