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 shortly after first flowers, spring flush of pitchers followed by delayed flush of similarly shaped, more robust pitchers in late summer, erect;

distal portion of tube typically yellow-green, sometimes purple-lined, purple reticulate-veined, or strongly purple, without white areolae, 15–75 cm, firm, surfaces glabrous or finely pubescent, wings 1–2 cm wide;

orifice oval, 2–5 cm diam., rim green, tightly revolute, not or scarcely indented distal to wing;

hood recurved adaxially, held well beyond and covering orifice, proximal margins not reflexed, usually yellow-green, sometimes purple-lined, purple reticulate-veined, or strongly purple, without white areolae, ovate, not undulate, 3.5–6 × 4–6 cm, usually wider than long, base cordate, necks not constricted, 0.5–1 cm, apiculum 1–3 mm, adaxial surface glabrate or with hairs to 0.5 mm.

absent.

usually absent, rarely 1–2, erect, oblanciform, to 40 × 1–2 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 1–1.5 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.

moderately ill-scented;

sepals yellowish green, rarely suffused with purple, 3–6 × 2.5–4 cm;

petals pale to deep yellow, distal portion ovate-orbiculate, 5–7 × 2.2–4 cm, margins entire;

style disc green, 5–8 cm diam.

0.5–1.5 cm diam.

1.2–1.8 cm diam.

1.2–1.5 mm.

1.9–2.3 mm.

= 26.

= 26.