Rubus calycinus

Rubus calycinus, called wild raspberry, belongs to the rose family. Its native range runs from the Himalayas into China and Myanmar. It also grows in Java, within Indonesia. Records include Bhutan, Nepal, and the Himalayan region of India. This perennial grows on damp banks, wooded slopes, and forest edges. Recorded sites lie between 3,937 and 9,843 feet [1,200–3,000 metres]. Kew places it within a temperate climate range.

The plant stays low and spreads along the ground. Useful Tropical Plants describes partly woody stems that creep outward. These can reach about 9.8 feet [3 metres] in length. They take root at nodes and form thick mats. Short, upright side stems rise from the leaf nodes. These carry the fruit and have few branches, or none. That source gives their height as 0.7 feet [0.2 metres]. Plants For A Future instead lists 3.3 feet [1 metre]. These reports differ, so they do not establish a firm garden height. Kew describes its form as a climbing subshrub.

Plants For A Future records flowers during June and July. Each flower has both male and female parts. Insects pollinate the flowers. The seeds ripen from August through September. Fruits turn red to dark red as they mature. They reach about 0.05 feet [0.014 metres] across. People gather the fruit from wild plants for local use. Plants For A Future lists it for eating fresh or cooked. Its low food-use rating suggests a minor edible crop.

The species account lists moist soil with good drainage. It accepts sandy, loamy, and clay soils. It also lists mildly acid, neutral, and mildly alkaline conditions. Sun and partial shade fall within its stated light range. Woodland edges and dappled shade are listed garden settings. Its creeping stems give it a low, mat-forming shape. British hardiness remains uncertain in the Plants For A Future account. That source bases its fuller growing notes on the genus, not species trials.

The fruit can also yield purple or muted blue dye. Plants For A Future records no known medicinal use. Both use accounts report no known hazards. This does not establish safety for every plant part or pet. The supplied accounts name no specific pests or diseases.