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.