Flora of North America species comparison

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

roots fleshy.

superficial or very shallow, cordlike portion 1–2 dm × 2 mm, expanding to 10–15 mm diam., nodes with brown, scalelike leaves and few to no roots.

usually 1-branched, solid, 7–15 dm.

1–2-branched, 3–3.2 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 with blade pale green, 3.2 dm × 1.5 cm, margins scarious basally, apex acute, proximal 2 semi- sheathing, blade 5 cm, scarious;

cauline 1–2, sheathing branch and stem for ca. 1/2 their length, blade ca. 5 cm, semimembranous.

4–12-flowered;

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

2–3-branched, each unit with single flower, all borne at approximately the same level;

spathes 2–3 cm × 5 mm, subequal, scarious except basally and along midrib.

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 white or blue tinged with deep violet lines;

floral tube funnelform, 0.3 cm;

sepals oblong-spatulate, 2.8 × 1 cm, apex deeply emarginate, signal an inconspicuous crest with low, yellow, undissected ridge;

petals bluish white, oblanceolate-spatulate, base gradually attenuate into claw;

ovary elliptical, 0.4–0.7 cm;

style 1.8 cm, crests broadly obovate, 0.7 cm, margins erose;

stigmas triangular-acuminate, margins entire;

pedicel 0.4–1 cm, not lifting flower clear of spathes.

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

depressed-globose, roundly triangular, 0.9–1.5 × 1.2 cm.

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

pale brown, with whitish raphe, D-shaped, pitted.

= 34.

= 28.