Flora of North America species comparison

persistent, dying back if frozen, appearing with flowers and continuously all summer, erect, green to flushed red or solid maroon, often red- or purple-veined distally, major veins and crossveins of internal and external surfaces dark maroon-red, without white areolae, (short-petiolate, proximal solid petiolar portion to 1/4 length of pitcher, tapering gradually from base to orifice or sometimes scarcely bulging abaxially in distal portion), (6–)10–52(–57) cm, firm, waxy, external surface glabrous or puberulent, wings 0.5–2 cm;

orifice oval, 0.5–3.5 cm diam., rim green to red or maroon, tightly revolute, with no or distinct indentation distal to wing, sometimes forming spout; recurved adaxially, held beyond and covering orifice, sometimes held close to orifice, green to maroon, faintly red- or maroon-veined, or conspicuously and densely reticulate-veined, all veins of abaxial and adaxial surfaces of hood and neck red to maroon throughout proximal and distal portions, without white areolae, ovate, flat to slightly undulate, 0.7–4.5 × 0.7–4 cm, longer than wide, base attenuate to cordate, scarcely constricted, neck 0.5 cm, margins entire or slightly undulate (proximal margins scarcely reflexed), apiculum 1–3 mm, adaxial surface with hairs to 0.5 mm.

marcescent, appearing after the first flowers, producing 1 flush of pitchers in spring through early summer, erect, yellowish green throughout, often with dark red blotches on neck, dark red veins on distal portions of tube and hood, or whole tube heavily suffused bronze or purplish red, without white areolae, 25–90(–100) cm, thick, firm, surfaces glabrous, wings 0.5–1(–2) cm wide;

orifice broadly ovate, 2–7(–8) cm diam., rim green, flaring and loosely revolute, often with prominent, everted indentation immediately distal to wing forming spout over wing;

hood recurved adaxially, held well beyond and covering orifice, yellow-green, red-veined or suffused with bronze-red, without white areolae, orbiculate-reniform, not undulate, 3–10 × (3–)5–14 cm, ± as long as wide, proximal margins broadly cordate, opposite lobes reflexed abaxially, touching or nearly touching, neck (often red-blotched or red-veined), constricted, 1–3 cm, margins revolute, apiculum (2–)3–12(–18) mm, adaxial surface glabrous.

absent.

2–4(–5), erect, oblanciform, (8–)12–30 × 1–3 cm.

1–2, from 1 bud, 12–75 cm, usually 1.5–2(–3) times height of tallest pitchers;

bracts 0.4–1 cm.

15–60 cm, shorter than pitchers;

bracts 1–2 cm.

strongly fragrant;

sepals maroon, 1.5–2.7 × 2–2.6 cm, (margins strongly reflexed abaxially after anthesis);

petals maroon to red, distal portion obovate, 2.5–4 × 1.3–2.5 cm, margins erose;

style disc greenish, 2–3.5 cm diam.

strongly ill-scented;

sepals yellowish green, 3–5 × 2–3.5 cm;

petals yellow, distal portion ovate to narrowly elliptic, 5–8.5 × 3–4 cm, margins entire;

style disc yellow-green, 6–8 cm diam.

0.5–1.5 cm diam.

1.4–2 cm diam.

1.2–1.5 mm.

1.8–2.5 mm.

= 26.

= 26.