Leaf heterophylly

Heterophyllousheterophyllous:
(adj) with dissimilar leaves on the same plant; often occurs on plants with both submersed and emersed leaves
plants have dissimilar leaves on the same plant. Note that heterophyllyheterophyllous:
(adj) with dissimilar leaves on the same plant; often occurs on plants with both submersed and emersed leaves
cannot by ruled out (the state "leaves morphologically homogeneous") if your specimen is not the whole plant or a whole stem. For example, if your specimen is only two similar looking leaves, you cannot necessarily determine if a different looking leaf is borne on another part of the stem.

In aquatic plants that are heterophyllousheterophyllous:
(adj) with dissimilar leaves on the same plant; often occurs on plants with both submersed and emersed leaves
, leaf form is determined by a plant's environment -- whether a leaf is submergedsubmerged:
(adj) (syn. submersed) under water; submerged below the water surface
or emergentemergent:
(adj) (syn. emersed) with parts raised out of the water; extending up out of the water
. Leaves may grade from one form to another along an emerging stem, or leaves may be of two quite distinct forms.

with both emersed and submersed leaves distinct morphologically (heterophyllous)

leaves morphologically homogeneous

APPW key feature pages

Leaf heterophylly

APPW key feature pages