Rubus trilobusRubus trilobus, the boulder raspberry or delicious raspberry, is Mesoamerican species of flowering plant in the rose family. It is native to Guatemala and to southern and central Mexico.DescriptionRubus trilobus grows in moist or wet coniferous forests in the mountains. It is a shrub sometimes as much as 5 meters tall. It does not have prickles. Leaves are broadly three-lobed with teeth along the edges, green on the upper side, lighter green on the underside. Flowers are white. Fruit is dark purple.