Rubus saxatilis
Rubus saxatilis, the stone bramble or roebuck berry, is a species of bramble widespread across much of Eurasia.
Description
The stone bramble is a perennial plant with biennial stems which die after fruiting in their second year. It sends out long runners which root at the tip to form new plants. The stems are tall and rough with many small spines. The alternate leaves are stalked, usually compound and consisting of three oval leaflets with serrated margins, the terminal leaflet having a short stalk and the other two being slightly smaller.The inflorescence is a few-flowered corymb. The calyx of each flower has five sepals and the corolla is composed of five narrow white petals. There is a bunch of stamens and there are several pistils. The fruit is an aggregate of several red, fleshy drupes. It is red, in diameter, and contains large pips. Its fruit persists for an average of 17.6 days, and bears an average of 2.0 seeds per fruit. Fruits average 94.0% water, and their dry weight includes 29.8% carbohydrates and 1.4% lipids.
Distribution and habitat
It is widespread across Europe and Asia from Iceland and Spain east as far as China. It has also been found in Greenland.The stone bramble can form dense clumps, spreading by means of its runners. It can also spread by seed as its edible fruit are eaten by birds which deposit the seeds elsewhere in their droppings. It flourishes in damp woods and rough places and can grow vigorously in clearings created by felling trees.