Evansia or crested iris

Shade-loving plants in section Lophiris of the subgenus Limniris with spreading rhizomes often growing upward and cane-like. Leaves soft and thin. Falls without beards but sometimes crested.

Source: Cooke, D. (2005). Iridaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Lilianae
order      Asparagales
family       Iridaceae
genus        Iris L.