Notes For Reference:-　

Species, Varieties, or Forms in the Genus Euya:

Eurya emarginata / Hamahisakaki
Eurya japonica / Hisakaki




　

Eurya japonica / Hisakaki ヒサカキ

Eurya japonica is a commonly seen evergreen shrub or small tree with smooth, dark brown to black-gray bark found on forest floors in mountainous regions. Thick, leathery, glossy, and hairless leaves are alternate, and those on lateral branches are distichous (arranged in two vertical columns) simultaneously. Blades are oblong or oblanceolate, 3-7cm in length, 1.5-3cm in width, with tips obtuse, bases acute, and margins shallowly serrated. Flowers are dioecious; axils set 1-3 bell- or cup-shaped flowers in a bundle, 2.5-3mm across, bloom facing downward. Sap fruit measures 4-5mm in diameter and matures to a purple-black color in October-November. Bloom time: March-April.