Flora of North America species comparison

variable, subrhizomatous to ± ovoid, 3.1–8.1 × 3.6–10.6 cm, 0.3–1.4 times taller than long;

scales 2–3(–5)-segmented, some unsegmented, longest 3.1–7.3 cm;

stem roots absent.

± ovoid, 3.5–7.9 × 2.6–5.3 cm, 0.9–2.1 times taller than long;

scales unsegmented, longest 3–5.7 cm;

stem roots absent.

to 1.7 m, glaucous or not.

to 1.1 m, glaucous.

rounded in cross section.

rounded in cross section.

in 1–9 whorls or partial whorls, 3–25 leaves per whorl, usually ascending, 1.7–15.7 × 0.4–4.7 cm, 2.4–7.4 times longer than wide;

blade weakly oblanceolate to obovate or ± elliptic, margins usually somewhat undulate, apex acute;

veins and margins ± smooth abaxially.

in 1–5(–6) whorls or partial whorls, 3–19 leaves per whorl, ascending and often cupping stem, 1.8–7.1 × 0.7–2.8 cm, 2.2–4.8 times longer than wide;

blade ± obovate, oblanceolate, or occasionally elliptic, noticeably glaucous, margins nearly always undulate, apex widely acute;

veins and margins ± smooth abaxially.

racemose, 1–25(–45)-flowered.

usually umbellate in small plants, in large plants racemose or in 2 whorls, 1–9-flowered.

pendent to nodding, not fragrant;

perianth Turk’s-cap-shaped;

sepals and petals reflexed 2/5–1/2 along length from base, yellow or orange to occasionally red, with copious maroon spots, often darker and especially reddish abaxially, not distinctly clawed;

sepals not ridged abaxially, appearing wide for their length, 3.4–7.1 × 0.8–1.9 cm;

petals 3.5–6.9 × 0.8–1.9 cm;

stamens barely to moderately exserted;

filaments moderately spreading, diverging 10°–20° from axis;

anthers pale yellow to yellow, 0.5–1.3 cm;

pollen orange or yellow;

pistil 2.4–3.7 cm;

ovary 1.1–2.2 cm;

style green;

pedicel 2.8–20.2 cm.

nodding to horizontal, not fragrant;

perianth ± campanulate or funnelform;

sepals and petals somewhat recurved 3/5–4/5 along length from base, red or magenta, occasionally salmon pink or pale yellow, with maroon spots, often yellowish on proximal 1/3–1/2, not distinctly clawed;

sepals not ridged abaxially, 3.1–4.7 × 0.7–1.2 cm;

petals 3–4.5 × 0.7–1.1 cm;

stamens included;

filaments barely spreading, diverging 0°–12° from axis;

anthers reddish or magenta, 0.3–0.8 cm;

pollen rust, orange, or yellow;

pistil 2.1–3.5 cm;

ovary 1–2.1 cm;

style green, rarely reddish purple;

pedicel 0.8–14.2 cm.

2.2–5.4 × 1.1–2 cm, 1.7–3.3 times longer than wide.

2–4.1 × 1.2–2.1 cm, 1.4–3 times longer than wide.

135–330.

90–210.

= 24.

= 24.