NAPIFERUM Peyritsch, 1859
Distribution : Mexico (Trans-Mexican Volcanic Belt), ± 2800 m.
Biennial herbs produccing an elongated white few-leaved corm, with flowering branches the following year.
Leaves : First leaves of the corm nearly globular, ± 2 mm, upper leaves clavate, ± 9.5 mm, leaves on flowering
branches alternate, lanceolate or ovate, obtuse, very shortly spurred, subterete, pale green, 4.3 - 7.9 x 2 - 3.6 mm.
Flowering branches erect.
Inflorescences small few-flowered corymbs, pedicels 2 - 6 mm, sometimes papillose.
Flowers 5-merous, sepals basally free, broadly spurred, unequal, ovate, obtuse, green, 2.4 - 5 x 1.2 - 2.7 mm, suberect, petals basally free, lanceolate, bluntly appendaged at the tip, white usually with 3 - 4 (-5) bands of dark red, ± 5.5 mm, suberect, filaments pink or dark red, anthers dark red.