Ipheion uniflorum is a species of flowering plant, related to the onions, so is placed in the allium subfamily (Allioideae) of the Amaryllidaceae. This is a small herbaceous perennial growing from a bulb and producing flat, shiny, green, hairless, grasslike leaves up to 30 cm (12 in) long. The foliage has an onionlike scent when crushed.