Flora of North America species comparison

freely branching, producing dense clumps, slender, 0.5–0.7 cm diam., covered with bases of old leaves;

roots fibrous.

freely branching, forming large colonies, slender, 0.8–0.9 cm diam., covered with remains of old leaves;

roots fibrous.

simple, solid, 2–3 dm.

1–4-branched, solid, 1.5–7 dm.

basal with blade sometimes pink to red basally, finely ribbed, linear, 3–3.5 dm × 0.5 cm, subglaucous, margins not thickened, apex acute;

cauline 1–3, imbricated, mostly free, bractlike, blade linear-lanceolate, inflated.

basal with blade yellow-green, occasionally darker green, sometimes flushed pink or red basally, prominently ribbed, linear, 4.5–10 dm × 2 cm, apex acute;

cauline 1–3, reduced.

(1–)2-flowered;

spathes often flushed with pink or red, lanceolate, 4–8 cm × 5–10 mm, subequal or unequal and inner somewhat longer than outer, rigid, apex acuminate.

(2–)3-flowered, branch units 2–3-flowered;

spathes opposite or separated, divergent, green, sometimes flushed purple basally, lanceolate-acuminate, 6–12 cm × 7–12 mm.

perianth pale cream with distinct veins of lavender, reddish brown, or brown, margins often distinctly crisped;

floral tube funnelform, 3–5.8 cm, slender, then expanding abruptly to base of flower;

sepals spreading outward from base and remaining in horizontal position for entire length, narrowly lanceolate to oblanceolate, 4–6.5 × 1.1–1.8 cm, base attenuate into long claw;

petals somewhat spreading, not strictly erect, 4.5–6.5 × 0.6–1.4 cm, base gradually attenuate;

ovary 1–2 cm, gradually tapering to each end;

style 2–3 cm, crests linear, undulate near tip, 1–2.5 cm;

stigmas triangular;

pedicel 0.8–1.8 cm at anthesis.

perianth deep red-purple, lavender, gray-blue, cream, or white, with gold signal and blue or purple veins;

floral tube 1.5–2.8 cm, usually widening to bowl shape at base of flower;

sepals oblanceolate to obovate, 5–9 × 1.4–3 cm, base gradually attenuate, apex obtusely rounded;

petals oblanceolate, 4.5–7 × 0.9–1.8 cm, base attenuate to narrow claw;

ovary elliptic-oval, sharply triangular in cross section, 3–4 cm;

style 1.7–3.5 cm;

crests overlapping, subquadrate, 1–2 cm, margins coarsely toothed;

stigmas triangular;

pedicel 2–5 cm.

oblong, round in cross section, 3–4 cm, base abruptly attenuate into pedicel, apex gradually acuminate into distinct beak apically.

sharply triangular in cross section with ridge at each angle, tapering at both ends, remnant of floral tube forming tip at apex, 2.5–5 cm.

grayish brown, pyriform to oval, 3 mm, wrinkled.

dark brown, pyriform, wrinkled.

= 40.

= 40.