Flora of North America species comparison

branching occasionally, often irregularly, 1.6–3 × 3.9–11.8 cm, 0.2–0.5 times taller than long;

scales 2–4-segmented, longest 1–2 cm.

to 1.7 m, weakly clonal and not forming large colonies.

± evenly distributed along middle of stem, occasionally scattered, especially in young plants, or in 1–6 whorls or partial whorls, 3–19 leaves per whorl, usually horizontal and drooping at the tips, sometimes ascending, 6–24.6 × 0.5–3.5 cm, 4–22 times longer than wide;

blade elliptic to narrowly linear, usually lanceolate in distal leaves, margins not undulate.

1–15-flowered.

not fragrant;

sepals and petals reflexed 1/3 along length from base, usually uniformly orange or yellow-orange, rarely light orange or light red-orange on distal 1/3–2/5 and lighter proximally;

sepals appearing wide for their length, 3.5–7.1 × 1–2 cm;

petals 3.4–7.1 × 0.9–2 cm;

stamens moderately exserted, often malformed and/or shrunken;

filaments moderately spreading, diverging 10°–18° from axis;

anthers pale yellow, 0.5–1.3 cm, pollen yellow or orange;

pistil 3.1–4.3 cm;

ovary 1–2.2 cm;

pedicel 6–29.5 cm.

2.3–4.2 × 1.2–2.1 cm, 1.6–2.6 times longer than wide.

123–198.

= 24.