Flora of North America species comparison

blade dull green, to 4 mm wide.

blade dull green, to 5 mm wide.

erect;

perianth lemon yellow, funnelform, 3.1–5 cm;

perianth tube green, 0.7–1 cm, increasing in diam., less than 1/3 perianth length, ca. 1/2 (1/3–3/4) filament length, less than 1/2 spathe length;

tepals rarely reflexed;

stamens diverging, in 2 distinctly subequal sets;

filaments filiform, subequal, 1.2–2 cm;

anthers 5–7 mm;

style longer than perianth tube;

stigma capitate, usually among or below anthers, not exserted more than 1 mm beyond anthers;

pedicel 2.3–4.4 cm, usually longer than spathe.

erect;

perianth white, sometimes tinged or veined pink, salverform, (7.3–)9–14(–16) cm;

perianth tube primarily white, sometimes pale green proximally, (7–)8–12(–13) cm, diam. uniform, 3/4 or more perianth length, at least 15 times filament length, ca. 2–4 times spathe length;

tepals rarely reflexed;

stamens fasciculate, appearing equal;

filaments subulate, 0.2–0.5 mm, apex blunt;

anthers 4–8(–9) mm;

style longer than perianth tube;

stigma capitate, among or very near anthers, exserted no more than 2 mm beyond anthers;

pedicel absent or rarely 0.1 cm and much shorter than spathe.

1.6–2.6 cm.

(3–)4–5(–5.7) cm.

= 48.

= 48, 60, 68, 72.