Leaves are of course extremely variable in appearance.
In this tool, the term "leaf" is used broadly and includes
fern fronds, quillwort megaphylls, and moss microphylls. The duckweed
plant body is also considered a leaf here, for identification purposes.
The liverworts, which have a plant body undifferentiated into stems, leaves,
and roots (a thallusthallus:
(n) a photosynthetic plant body that is not (or apparently not) differentiated into stems, roots, and leaves
), are considered "leaves absent." Some
algaealgae:
(n) (sing. alga) photosynthetic, eukaryotic, unicellular or complex multicellular organisms, mainly aquatic, lacking true stems, roots, leaves, conducting vessels, and complex sex organs
appear to have leaf-like organs but algaealgae:
(n) (sing. alga) photosynthetic, eukaryotic, unicellular or complex multicellular organisms, mainly aquatic, lacking true stems, roots, leaves, conducting vessels, and complex sex organs
are not plants and do
not have true leaves. See the fact sheets of individual taxa for more
detailed descriptions of these taxa.
Authors: S. Winterton, J. Scher, J. Burnett, and A.J. Redford
Edition 3.0 - last updated September 2018
idtools.org
tool images at ITP Node
Lucid Mobile for Android (on Google Play)
Lucid Mobile for iOS (on the App Store)
