Flora of North America species comparison

pink, freely branching, producing extensive clumps, 2–3 cm diam., with fibrous remains of old leaves;

roots fleshy.

many-branched, not creeping, forming dense clumps, slender, 0.3–0.8 cm diam.;

roots fibrous.

usually 1-branched, solid, 7–15 dm.

simple, somewhat angular, solid, 1.5–2.7 dm.

basal deciduous, at first erect, then recurved, blade dark green, with prominent median thickening, 4–10 dm × 2–3 cm, slightly glaucous basally;

cauline equaling inflorescence unit.

basal somewhat lax, overtopping stem, blade light green, paling to pink or straw color basally, finely ribbed, linear-acute to linear, ensiform, 4.5 dm × 0.5 cm, margins not thickened;

cauline 1–3, sheathing for 1/2 length then spreading, foliaceous, blade linear-lanceolate, not inflated, narrow, reduced, to 15 cm.

4–12-flowered;

spathes green with brown margins, outer spathe strongly keeled, inner without keel, 6–9 cm, subequal, margins not scarious.

1–2-flowered;

spathes distant basally by 3 cm in some cases, keeled, linear-lanceolate to lanceolate-acuminate, 5–7 cm × 2–4 mm, unequal, outer longer than inner, herbaceous, margins scarious.

perianth bright yellow;

floral tube 0.6–0.8 cm, with no constriction into ovary;

sepals bright yellow or cream colored, lanceolate to ovate or suborbiculate, 5–7.5 × 3–4 cm, base abruptly attenuate, claw ca. 1/2 length of limb, signal a darker yellow basal patch limited by short, brown lines;

petals without veining, lanceolate to spatulate, 2–3 cm;

ovary triangular in cross section with concave sides and narrow groove at each angle, 1.5 cm;

style keeled, 3–4 cm, crests spreading, 1–1.2 cm, laciniate at apex;

stigmas rounded with prominent tongue;

pedicel 2.5–7 cm.

perianth color variable, purple, pink, lavender, cream, yellow, or rarely white;

floral tube funnelform, 0.6–2 cm;

sepals veined with color of limb, obovate, 5.8–6 × 1.6–2 cm, base gradually attenuate into white claw with slight yellow ridge, apex emarginate to bluntly rounded;

petals same color as sepals, not prominently veined, lanceolate to oblanceolate, 5 × 1 cm;

ovary 1–2 cm, slightly wider distally, base very gradually attenuate;

style 2.2–3.2 cm, crests subquadrate, 8–12 mm, margins crenate or incised;

stigmas triangular, margins entire;

pedicel 1–5 cm, longer in second flower (when present) than in first.

prismatic to oblong-ovoid, obscurely 3-angled with obvious groove at each angle, 3.5–6 cm, beak 5 mm.

oblong, triangular in cross section, prominently ribbed, beaked, 3–5 cm.

D-shaped, flattened, 6–7 mm, corky, lustrous.

brown, D-shaped to irregular, wrinkled.

= 34.