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Plant
habit
grass-like
aquatic & OBL wetland species
special groups
dicots
monocots
longevity
annual or biennial
perennial
Leaves
blade division
all simple
deeply lobed or divided
some or all fully compound
leaf attachment
leaf stalk (petiole) clearly present
sheathing
Flower
principal flower color
white or cream
yellow
inconspicuous
flower type
radial symmetry 5 petals
petals indistinguishable
Fruit or Cone
mature fruit dehiscence
opening along 1-2 seams
does not split open to release seed
Graminoid Traits
leaf arrangment - number of ranks
2-ranked
3-ranked
stem consistency
hollow except at nodes
solid
culm cross-section
round
angled
leaf sheath
open (split on side)
closed (not split)
ligules
absent
eciliate membrane
ciliate membrane
fringe of hairs
erose
spikelet disarticulation
breaking up at maturity (above glumes)
falling entire (below glumes)
spikelet compression
laterally compressed
dorsally compressed
subterete
awns - present/absent
awns present
awns absent