Fibrous-rooted, with equitant leaves and perfect 3- or 6-androus flowers.
The leaves are ranged on each other's back (equitant) as in the Marsh Asphodel (Narthecium ossifragum, t. 535).
Involucral leaves numerous, equitant; perianth ovate-subulate or narrowly fusiform, 3-angled, deeply 6–8-lobed.
The leaf-sheaths are smooth, equitant with thinly membranous margins.
Among these are the equitant leaves of the Iris or Flower-de-Luce.