Flora of North America species comparison

10–30 cm × 2–5 mm.

1–2, 10–50 cm × 3–15 mm;

blade linear.

5–20(–25) cm, ± scabrous.

10–80 cm, usually smooth, sometimes scabrous near base.

perianth yellow, aging purple, 12–17 mm, tube slender, narrowly funnelform, attenuate at base, 4–7 mm, lobes somewhat spreading, with brown midvein, 8–10 mm, ca. twice as long as tube;

stamens attached at 1 level, equal;

filaments linear, 5–6 mm, more than 1/2 as long as perianth lobes, apical appendages absent;

anthers cream or blue, 1–1.5 mm;

ovary equal to stipe;

pedicel 0.5–3 cm.

perianth straw-colored or golden yellow, or sometimes white flushed with purple, usually similarly colored both adaxially and abaxially, 12–27 mm, tube acute at base, 3–10 mm, much shorter than or equal to lobes, lobes ascending to reflexed, with green, brown, or purple midveins, 6–20 mm;

stamens attached at 1 level, held close to pistil, unequal, alternately long and short;

filaments dilated entire length, noticeably flattened, apical appendages present, forked, those of longer filaments pointed, conspicuous;

anthers white, cream, yellow, or blue, 1–2 mm;

ovary longer than stipe;

pedicel 1–9 cm (–12 cm in subsp. cookii).

= 16.

= 10, 14, 16, 24, 32, 40, 42, 50.