Helophyte

Helophyte
A helophyte (Iris pseudacorus)

A helophyte or limnodophyte is the phytosociologic definition of a biennial or herbaceous plant of which only the buds survive a harsh period, such as winter, e.g. sweet flag (Acorus calamus) or bulrush (Typha sp.).

Many helophytes can also be termed hydrophytes or aquatic plants, e.g. common duckweed (Lemna minor), eelgrass (Zostera sp.), and water soldiers (Stratiotes sp.), or geophytes, e.g. the yellow flag (Iris pseudacorus).

See also

Source

Dutch Wikipedia Helophyte article