Flora of North America species comparison

usually only 1, relatively short, 10–20 cm.

1–2, 10–50 cm.

10–30 cm, smooth or slighty scabrous.

20–50 cm, usually scabrous.

perianth dull yellow, sometimes with darker midvein color extending into abaxial portion of perianth, tube 5–7 mm, ca. 1/2 length of lobes, lobes spreading, 9–12 mm; short filaments 2–4 mm, long filaments 3–5 mm, apical appendages short, straight or incurved;

anthers cream or yellow;

pedicel 1–4 cm.

perianth usually straw-colored to pale yellow, tube 3–7 mm, much shorter than lobes, lobes ascending to reflexed, 10–20 mm; short filaments 4–5 mm, long filaments 5–7 mm, apical appendages long, slender, straight to recurved;

anthers cream or yellow, occasionally blue;

pedicel 1–9 cm.

= 14, 16.

= 10 (11), 16, 24, 32.