''Rosa filipes'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

in the rose

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Rosaceae Rosaceae (), the rose family, is a family of flowering plants that includes 4,828 known species in 91 genera. The name is derived from the type genus '' Rosa''. The family includes herbs, shrubs, and trees. Most species are deciduous, but som ...

, native to western

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

, in

Gansu Gansu is a provinces of China, province in Northwestern China. Its capital and largest city is Lanzhou, in the southeastern part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibetan Plateau, Ti ...

Shaanxi Shaanxi is a Provinces of China, province in north Northwestern China. It borders the province-level divisions of Inner Mongolia to the north; Shanxi and Henan to the east; Hubei, Chongqing, and Sichuan to the south; and Gansu and Ningxia to t ...

Sichuan Sichuan is a province in Southwestern China, occupying the Sichuan Basin and Tibetan Plateau—between the Jinsha River to the west, the Daba Mountains to the north, and the Yunnan–Guizhou Plateau to the south. Its capital city is Cheng ...

Xizang The Tibet Autonomous Region (TAR), often shortened to Tibet in English or Xizang in Hanyu Pinyin, is an autonomous region of the People's Republic of China. It was established in 1965 to replace the Tibet Area, a former administrative divisio ...

, and

Yunnan Yunnan; is an inland Provinces of China, province in Southwestern China. The province spans approximately and has a population of 47.2 million (as of 2020). The capital of the province is Kunming. The province borders the Chinese provinces ...

. It is a

deciduous In the fields of horticulture and botany, the term deciduous () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed Leaf, leaves, usually in the autumn; to the shedding of petals, aft ...

climbing shrub, growing to 3–5 m, rarely up to 9 m tall. The leaves are pinnate, 8–14 cm long, with 5-7 leaflets. The flowers are white, 2–2.5 cm diameter with five petals, produced in large 15–30 cm diameter

corymb Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are borne on longer pedicels than the inner, bringing all flowers up to a common level. A corymb has a flattish top with a superficial re ...

s of up to 100 flowers. The fruit is a red 8–15 mm diameter

hip In vertebrate anatomy, the hip, or coxaLatin ''coxa'' was used by Celsus in the sense "hip", but by Pliny the Elder in the sense "hip bone" (Diab, p 77) (: ''coxae'') in medical terminology, refers to either an anatomical region or a joint on t ...

. The plant is very vigorous, with stiff upright stems protected by large and frequent thorns. They allow growing stems to anchor on to tree branches and climb to a great height.

Cultivation and uses

It is grown as an

ornamental plant Ornamental plants or ''garden plants'' are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars th ...

in gardens, valued for its unusually large clusters of flowers compared to other roses, sometimes also for its size, and its ability to climb into trees. The RHS

Award of Garden Merit The Award of Garden Merit (AGM) is a long-established award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. It includes the full range of cultivated p ...

-winning

cultivar A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root a ...

'Kiftsgate' was first noticed at Kiftsgate Court Gardens in the

Cotswolds The Cotswolds ( ) is a region of central South West England, along a range of rolling hills that rise from the meadows of the upper River Thames to an escarpment above the Severn Valley and the Vale of Evesham. The area is defined by the bedroc ...

, but its origin is unknown.Kiftsgate rose
/ref> The original plant dates from 1938 and the cultivar was named by

Graham Stuart Thomas Graham Stuart Thomas (3 April 1909 – 17 April 2003) was an English horticulturist, who is likely best known for his work with garden roses, his restoration and stewardship of over 100 National Trust gardens and for writing 19 books on garden ...

in 1951. It is particularly vigorous, with clusters of scented flowers up to diameter, and tolerant of shade, a necessary attribute for a tree climber. The original plant of ''Rosa filipes'' 'Kiftsgate' is said to be the largest rose in Britain, measuring × × high. The same official website claims that it have smothered three trees by its spreading habit.

References

Flora of China: ''Rosa filipes''
*Huxley, A., ed. (1992). ''New RHS Dictionary of Gardening''. Macmillan. filipes Flora of China {{Rosa-stub