GROUP: hydromorphic vegetation (hv)
DEFINITION: non-crop hydromorphic emergent herbaceous vegetation (Tree cover <<10%). Hydromorphic emergent vegetation is defined here as rooted emergent herbaceous vegetation adapted to standing water at least one month per year. USE = Fallow, Ornamental (in a managed park or garden) or Disturbed, depending on presence of debris and whether it is in the potentially Disturbed area.

1. Object
   1. persistent emergent vegetation = plants remain standing all year (Cowardin 1979)
   2. nonpersistent emergent vegetation = plants die back at end of growing season (Cowardin 1979)
2. Vegetation
   1. grass-like = >75% reeds, canes, wildrice, sedges and other grass-like species. Examples: Phragmites sp., Zizania sp.
   2. non-grass-like = >75% broadleaf water plants and other non-grass-like herbaceous species. Examples: Sagittaria sp.
   3. mixed = mixture of grass-like + non-grass-like vegetation.

1. persistent emergent vegetation
   1. grass-like = hv01
   2. non-grass-like = hv02
   3. mixed grass & broadleaf cover = hv03
2. ferns = hv04

1. IF TYPE with greater vegetation cover area is very similar or otherwise unclear:
   1. Choose mixed over grass-like over non-grass-like.
   2. Choose persistent over nonpersistent.
2. tg01 may appear to overlap with hv01.
   1. IF FORM = FP or AN, either tg01 or hv01 may be chosen, as identified in the field based on the degree to which vegetation species are hydromorphic (hv01).
   2. IF the FORM of the feature is any TR FORM: choose hv01.
   3. IF the FORM is any TE FORM, choose tg01.

FORM:

USE:

COVER:

TYPE: