What is "leucanthemella"

Leucanthemella is a genus of flowering plants in chamomile tribe within the sunflower family.

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.

Leucanthemella serotina (autumn ox-eye), native to Europe ( United Kingdom, France, Switzerland, Czech Republic, Hungary, Romania, Poland, Bulgaria, Bosnia-Herzegovina, Serbia, Belarus, Ukraine). 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 (Matsumura) Tzvelev in native to East Asia. It is found in Russia ( Primorye), China ( Heilongjiang, Jilin, and Liaoning Provinces), Korea, and Japan ( Honshu and Kyushu).