Flora of North America species comparison

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

roots fibrous.

freely branching, forming compact tufts, slender, 0.3–0.4 cm diam., covered with remains of old leaves;

roots fibrous.

1–4-branched, solid, 1.5–7 dm.

simple, solid, slender, 2–2.5 dm.

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.

basal evergreen, abundant, blade dark, shining green on one side, lighter green on the other, pink to deep purple basally, 3.5 dm × 0.2–0.4 cm, longer than flowering stem, margins not thickened;

cauline 2–4, sheathing stem for about 2/3 length, foliaceous, spreading, blade not inflated, 4–9 cm.

(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.

1(–2)-flowered;

spathes closely enclosing ovary and floral tube, broadly lanceolate to ovate, 3.3–6 cm × 5–7 mm, herbaceous, margins scarious.

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.

perianth usually dark golden yellow, cream, pink, lavender, or purple, heavily veined purple or brown;

floral tube 1.5–3 cm;

sepals usually yellow with heavy veining, broadly oblanceolate, 4.5–6 × 1.7–3 cm, base gradually attenuate, margins often wavy;

petals same color as sepals with lighter veining, narrowly oblanceolate, 4–5.7 × 0.9–1.6 cm, base gradually attenuate;

ovary roundly triangular in cross section, 1.5–1.8 cm;

style 2–2.6 cm, crests overlapping, subquadrate to semiovate, 0.9–1.4 cm, margins irregularly toothed;

stigmas triangular, margins entire;

pedicel 0.4–1.3 cm at anthesis.

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.

oblong-oval, circular in cross section, 2.5 × 1.2 cm.

dark brown, pyriform, wrinkled.

in 2 rows per locule, dark brown, oval, sharply angled, 3 mm, wrinkled, pitted.

= 40.

= 40.