Ligule

A distal projection of the leaf sheath;


(In fern allies) a small triangular organ on the adaxial side of the fertile leafbase in Isoetes and Selaginella;


(In Compositae/Asteraceae), the 5-toothed strap-shaped floret type typical of the tribe Lactuceae, but also found in other tribes.


A strap-shaped structure, such as a s ingle peta l of a ray flower of a sunflower.


The strap-shaped limb of the corolla of many Composites.


Projection of a leaf sheath, commonly used in the identification of Poaceae. In lycopods it is a small outgrowth at the base of a fertile leaf.


The little flap present where t he leaf-blade joins its sheathing base in Grasses and Sedges.


 


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