Leucanthemella is a genus of flowering plants in the sunflower/daisy family Asteraceae.
It contains two species of herbaceous perennials found in marshy habitats. They have hairy foliage and composite daisy-like white flowers in late summer and autumn. They are hardy in the most extreme European climates, down to or less, but in cultivation favour a sheltered position.
Leucanthemella serotina, autumn ox-eye or giant daisy, is native to Eastern Europe (between Poland, Montenegro, and Ukraine) and widely introduced in (north)western to south-central Europe. It is a vigorous, erect perennial growing to tall, bearing flowerheads with white ray florets and greenish-yellow centres, throughout autumn. It is cultivated in gardens, and has gained the Royal Horticultural Society's Award of Garden Merit.
Leucanthemella linearis <small>(Matsumura) Tzvelev</small> is native to East Asia. It is found in Russia (Primorye), China (Heilongjiang, Jilin, and Liaoning Provinces), Korea, and Japan (Honshu and Kyushu).