(3R,8E)-3-Hydroxy-5,8-megastigmadien-7-one

Rubus laciniatus, commonly called evergreen blackberry or cutleaf blackberry, is a species of blackberry that is native to Eurasia. It has been introduced to Australia and North America, and become a weed and highly invasive species in forested habitats in the United States and Canada, it is very difficult to control. Evergreen blackberry is a deciduous shrub that grows up to 3 meters tall with prickly shoots. The flowers are in clusters, the petals are pink or white. The fruits are shiny and black, similar to the common blackberry, with a unique and fruitier taste. The fruits are not true berries in the botanical sense. [Wikipedia]

The blackberry is an edible fruit produced by many species in the genus Rubus in the family Rosaceae. Blackberry is a perennial plant that grows to 3-6 meter tall. The pale pink flowers are produced in late spring and early summer. The fruits are rich in vitamin C, anthocyanins, flavonols and ellagitannins (PMID: 22082199), they have shown the beneficial effects to human health (PMID: 22082199)