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 large clumps, slender, 1–1.2 cm diam., covered with remains of old leaves;

roots fibrous.

1–4-branched, solid, 1.5–7 dm.

simple, solid, 6–7 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 persistent, blade gray-green, green and without pink coloration basally, 6–7 dm × 1.5–2 cm, glaucous, margins not thickened;

cauline 1–2, free from stem for ca. 1/2 length, foliaceous, spreading, blade not inflated.

(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.

3(–4)-flowered;

spathes widely separated, sometimes by 9 cm, divergent, unequal, outer 6.5–15 cm × 8–14 mm, inner much shorter.

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 pale powder blue to lavender or violet, often frilled and veined in violet or darker blue;

floral tube funnelform, 0.7–1 cm;

sepals oblong-ovate to broadly oblanceolate, 6.2–9 × 1.8–3.7 cm, base gradually attenuate, apex emarginate;

petals oblong to spatulate, 5–9.5 × 1.2–2.1 cm, base attenuate, apex apiculate;

ovary rounded in cross section, 1.4–3 cm, base gradually attenuate into pedicel, apex abruptly acuminate into floral tube;

style 3 cm, crests reflexed, subquadrate, shallowly lobed, 1.1–2 cm, margins entire or obscurely and shallowly lobed;

stigmas triangular, margins entire;

pedicels of varying lengths, 0.8–4.8 cm on first flower, those of later flowers longer.

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, rounded in cross section, tapering abruptly at either end, to 5 cm.

dark brown, pyriform, wrinkled.

brown, D-shaped or irregular, coarsely wrinkled.

= 40.

= 40.