The first mitogenome of Cornales (Hydrangea macrophylla 'Endless Summer') reveals the variation and rearrangement in superasterids evolution.

Our aim is to investigate the mitochondrial genome of Cornales species, focusing on Hydrangea macrophylla 'Endless Summer', a renowned cultivar known for its prolific flowering throughout summer and into fall. Our motivation stems from the potential to reveal new insights into plant adaptability, physiological function, and genetic diversity through the study of its mitochondrial genome.