Rubus ellipticus, also called Himalayan raspberry, is a thorny invasive shrub. In its native range in the Himalayas, it grows at high elevations of 7,500 feet. The stems produce seeds in the first year. Flowering branches form in the second year. The berries are yellowish-orange. It is a noxious weed in the state of Hawaii.
Description and Dispersal:
- A stout evergreen shrub 4.5 meters tall.
- Stems are covered with thorns and reddish hairs.
- Compound leaves are comprised of 3 oval-shaped leaflets
- White flowers have 5 petals
- Fruit is a yellow drupe growing in clusters
- Birds readily disperse the seeds