Deltoid

Deltoid [ Botany ]	Dictionary of botanic terminology - index of names
Synonym: Deltate, Triangular, Delta shaped.

Triangular in outline, suggesting a capital delta.

[ From the letter Δ or δ in the Greek alphabet ]

Deltoid leaf shape: a simple leaf - not divided into parts - having the form of a triangle with the petiole inserted at the middle of the laminar base with a point at the apex.