Flora of North America species comparison

single, usually unbranched, woody at base (hollow), 10–30 dm, viscid-pubescent.

single or multiple, stout, branches erect, 4–30 dm, viscid-pubescent.

sessile;

blade elliptic to lanceolate, 5–50 cm, becoming smaller distally, base tapering or decurrent, apex acute to acuminate, surfaces viscid-pubescent.

sessile;

proximal blades elliptic, distal elliptic to elliptic-ovate, decreasing in size distally, 20–50 cm, base auriculate, apex acute to acuminate, surfaces viscid-pubescent.

branched with distinct central axis (branches themselves branched and shorter than central axis), usually somewhat leafy; flowering diurnal.

branched panicles with congested branches, appearing moplike, leafy; flowering crepuscular.

(spreading), 0.5–1.5 cm.

0.5–1.5 cm (nodding, flowers pendent).

calyx uniformly green, 1.2–2.5 cm, viscid-pubescent, lobes long-triangular, equaling or shorter than tube, unequal;

corolla straight or strongly curved in distal 1/2, 3–5 cm (excluding limb), viscid-puberulent externally, tube pale greenish cream to pink or red, slightly curved or straight, 0.7–1.5 cm × 2–2.5 mm, widening to throat 25–40 × 5 mm, somewhat dilated distally, glabrous or minutely puberulent internally, limb spreading to somewhat reflexed, pale pink to reddish pink, occasionally white, pentagonal, 2–3 cm diam., lobes pale pink to reddish pink, occasionally white, acute;

stamens inserted near base of throat;

filaments unequal, 4 slightly exserted, 3–5 cm, 1 included, 3 cm (shorter than the other 4), pubescent on proximal 1/2;

style straight or slightly curved, ± equaling longer stamens.

calyx green, oblong or subglobose (somewhat twisted), 1–1.8 cm, viscid-pubescent, lobes erect, deltate to triangular, equal or nearly so, much shorter than tube;

corolla white, straight or very slightly curved, 6–9 cm (excluding limb), minutely viscid-pubescent without, tube white, cylindric, straight or slightly curved, 2 cm × 1–2 mm, throat 40–70 mm, glabrous or minutely puberulent internally, ventricose and inflated in middle to distal 1/3 (often somewhat asymmetrically), narrowing toward apex with constriction at mouth, 5 mm diam., limb spreading, tips somewhat reflexed, white, stellate, 1.5–2 cm diam., lobes white, broadly triangular, acute apically;

stamens inserted subequally at base of throat, included;

filaments unequal, 4 longer, 4–7 cm, just reaching corolla mouth, 1 slightly shorter, 4–6 cm, pubescent at insertion point;

style straight, just exceeding the 4 longer stamens, slightly exserted.

often tearing at sinuses (especially in cultivars), covering 1/2 mature capsule.

not tearing at sinuses, almost completely covering capsule.

narrowly ellipsoid, ovoid, or globose, 1.2–2 cm.

ovoid, 1.5–1.8 cm.

0.5 mm.

0.5 mm.

leaves sessile;

blade elliptic, to 50 cm, base decurrent and often auriculate or clasping, surfaces viscid-pubescent.

= 48.

= 24.