Flora of North America species comparison

often somewhat purplish, variable, subrhizomatous to ± ovoid, 3.3–11.7 × 2.4–14.4 cm, 0.4–2.6(–3) times taller than long;

scales unsegmented or notched, longest 3.5–11.2 cm;

stem roots present or absent.

rhizomatous, often branching, 1.4–2.9 × 9.6–18 cm, 0.1–0.3 times taller than long, 3–4 years’ growth evident as annual bulbs, older growth often with perpendicular thin branches leading to small new bulbs and always with noticeable abscission scars, youngest 3 years’ growth bearing basal leaves, scaleless sections between annual bulbs 2.7–5.4 cm;

scales unsegmented, longest 1–2 cm;

stem roots present or absent.

to 3.1 m. Buds rounded in cross section.

to 2 m. Buds ± triangular in cross section.

in 2–8 whorls or partial whorls, 3–16(–28) leaves per whorl, usually ascending, 4.6–14.5 × 0.8–3.6 cm, 2.9–7.2 times longer than wide;

blade usually ± oblanceolate, though often weakly so, rarely elliptic or lanceolate, margins usually undulate, apex acute;

veins and margins ± smooth abaxially.

in 1–5 whorls or partial whorls, 3–10 leaves per whorl, ascending, sometimes only slightly, or occasionally ± horizontal and drooping slightly at tips, 3.1–15.7 × 0.5–3.6 cm, 2.1–9.3 times longer than wide;

blade weakly to sometimes narrowly oblanceolate, occasionally obovate, elliptic, or narrowly elliptic, margins not undulate, apex acute, acuminate in distal leaves;

central vein in particular impressed adaxially, veins and margins often somewhat roughened abaxially with tiny ± deltoid epidermal spicules.

racemose, 1–33(–40)-flowered.

umbellate or rarely racemose, 1–4-flowered.

pendent, not fragrant;

perianth Turk’s-cap-shaped;

sepals and petals reflexed 1/5 along length from base, orange or yellow, with prominent red or magenta spots, not distinctly clawed;

sepals not ridged abaxially, 5.2–9.8 × 1.4–2.4 cm;

petals 5.6–9.6 × 1.5–2.9 cm;

stamens strongly exserted;

filaments parallel along most of length, then very widely spreading, diverging 17°–31° from axis;

anthers purple, 1.1–1.9 cm;

pollen rust, tan, or peach, becoming yellow or tan-yellow;

pistil 4.6–7.1 cm;

ovary 1.2–2.6 cm;

style green, often pale;

pedicel 7.8–21.2 cm.

pendent, not fragrant;

perianth Turk’s-cap-shaped;

sepals and petals reflexed less than 1/5 along length from base, yellow-orange or yellow, sometimes orange-yellow, often suffused with red distally, spotted maroon, often nearly to apex, not distinctly clawed, nectaries exposed, forming visible green star;

sepals with 2 parallel, often faint abaxial ridges, 6.2–10.2 × 1.1–1.8 cm;

petals 6.1–10 × 1.2–2.2 cm;

stamens strongly exserted;

filaments parallel along much of length, then widely spreading, diverging 14°–31° from axis;

anthers magenta, 1–1.6 cm;

pollen rust or sometimes rust-orange;

pistil 4.7–6.8 cm;

ovary 1.5–2.5 cm;

style very pale green, often spotted purple near apex;

pedicel 10–23 cm.

longitudinally keeled, 2.5–5.4 × 1.8–3.3 cm, 1.1–2.3 times longer than wide.

2.5–5 × 1.7–3 cm, 1.2–2.2 times longer than wide.

not counted.

not counted.