Flora of North America species comparison

blade dull green, to 5 mm wide.

blade dull green, to 4 mm wide.

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.

erect;

perianth dark lemon yellow, funnelform, 2.5–5 cm;

perianth tube green, (1–) 1.2–2(–2.4) cm, increasing in diam., less than 1/2 perianth length, ca. 2 times filament length, ca. 1/2–3/4 spathe length;

tepals sometimes reflexed;

stamens diverging to semifasciculate, appearing equal;

filaments filiform, (0.5–)0.6–0.8(–1.1) cm;

anthers ca. 7 mm;

style longer than perianth tube;

stigma capitate, usually among anthers;

pedicel (0.1–)0.2–1.6(–1.8) cm, shorter than spathe.

(3–)4–5(–5.7) cm.

1.9–3.2 cm.

= 48, 60, 68, 72.

= 46, 48.