Enum. Pl. 4: 682. 1843.
Bulbs 7–15 cm, tunic thick, with numerous coarse, brown fibers of old bulb scales (except var. minus). Leaves 2–7 dm × 6–25 mm, margins usually strongly undulate. Panicles 3–25 dm, branches many. Flowers vespertine, open 1 night only, closed by next morning; tepals spreading and recurved at anthesis, white with green or purple midveins, linear, 1.5–2.5 cm; stamens shorter than tepals; anthers purple or yellow, ca. 3 mm; pollen yellow or whitish; style 10–15 mm, from shorter to longer than tepals; pedicel slender, 5–35 mm, usually ca. equal to or exceeding perianth. Capsules 5–7 mm.
Varieties 3 (3 in the flora).
|1||Bulb tunic membranous or with few coarse fibers.||Chlorogalum pomeridianum var. minus|
|1||Bulb tunic not membranous, with numerous coarse fibers.||> 2|
|2||Panicles erect, 5–25 dm.||Chlorogalum pomeridianum var. pomeridianum|
|2||Panicles nearly prostrate or with branches diverging widely from base, 3–4 dm or shorter.||Chlorogalum pomeridianum var. divaricatum|
"dm" is not declared as a valid unit of measurement for this property."thicker" is not a number.